Yes, there are dryers, similar to hand dryers. I took a blow dryer when we visited BB because we were catching our flight that evening and there was not a plug anywhere in the dressing room. I even had a CM in there trying to help me and there was no luck.
They only have the hand dryers, and no plugs-ins. The dryers are placed higher on the wall, so most poeple wouldn't have to duck under the dryer very much, which helps a bit.