The "Around in 80 Beers" series of books include London, Brussels, Berlin and Amsterdam. I find them incredibly useful guides, not only in relation to beers, bars, but, also food, general information and history.
Some of my tips below feature in the edition I was using, a few others are ones we found that I'd like to share. All of these are on, or very near the main square, and, were personally vetted by us (tough job).
@The Pub 4 Hallestraat - Off the square, a small bar, but one which had a lovely friendly feel to it. Over 100 beers available on tap or in bottle. Well worth a visit, but, could be busy on a weekend evening. Michelle chose a lovely beer in here - Viven Porter (less said about the aniseed fuelled rubbish I sampled the better).
2be 53 Wollestraat - Tourist central! Home to the Wall of Beer, containing over 1,700 different Belgian beers, some of which are available in the small (usually crowded) bar at the back. Has two floors of beers and gifts that you can buy on your way out, take a look around, I reckon you'll find something you must have! We had hot chocolate here, love Belgian hot chocolate, especially on a crisp cold January day.
Delaneys (previously Celtic Ireland) 8 Burg - We went here so we could watch Liverpool v Man City (ok, might have been more about me than Michelle). An Irish pub that has a few screens, shows all the football, and, serves food all day. I had a few glasses of the local Straffe Hendrik which is a seriously good Abbey Tripel from Halvemaan. For the record, we beat Man City 1-0, probably the last match where we played ok and deserved the win.
Duvelorium Grand Beer Café Historium Brugge Markt 1 8000 Brugge - A quick visit here, as the name suggests it is a Duvel owned and inspired bar. Decent beer list, and, a stunning view of the square from the balcony. I imagine during the summer that those seats outside go very quickly.
Bier Museum Breidelstraat 3 / 8000 Brugge - We went here twice, once to the bar and two days later, the actual museum itself. This is a Palm lead bar, with a good choice of beers available, although nothing too challenging, in my opinion. Taster paddles can be purchased at the bar, or, as part of your museum ticket if you choose that option. I think the bar closes at 6, with the museum closing a bit earlier.
I love Bruges, I love the beer, and, I quite like the food and chocolate too, and, the scenery at times is simply stunning. We had a lovely time.