To add to what woodnthings said about heating up the blade, any amount of banging on it or prying is cause for concern when re-using it. I wouldn't want one of the teeth to pop off while my face is in line with the blade spin and embed itself in my forehead or worse (I often use my saw with safety glasses instead of my full face covered).
Also consider that with the hole of the blade being bent in/out during this process it may have some wobble to it, which might not be a big deal if you are just dicing up 2x4's and rough plywood, I wouldn't want to cut anything finish grade on it.
Edit: If you haven't gotten it off yet, I'd recommend against hitting it further for the sake of your saw bearings. The damage just isn't worth it, as your saw bearings aren't designed for lateral stress. I'd get a metal c-clamp on it and either plasma or angle grinder cut it off (or a sawzall with a short blade, dremel if none of those are available). Get as close to the shaft as you can on two sides of the blade, then bend it back and forth until it snaps off.
Last edited by MattS; 12-14-2015 at 03:21 PM.