There are local pungmul teams that will have lessons for beginners, you might be allowed to join a university club, and larger cultural centres might have lessons too. Ask teachers at your school if they can help you find a pungmul team. It'll probably be pretty cheap, but don't expect them to speak English at all. Classes will probably be in the evenings a couple of times a week. They will have drums you can use. It's a lot of fun.