I say this very gently. You are not going to get him into treatment if he's not ready. If he's pushed into it, it won't work. It has to be his decision.
Put your energy where it can do some good....work on YOU. Find an AlAnon group and try a few meetings. Read the sticky's at the top of the page. Get the book "CoDependent No More" by Melody Beattie. Decide now, while he's still in the hospital, what your boundaries are. If you don't want him back in the house, let him know he needs to make other arrangements.
He can choose to avoid recovery if he wants, that's his right. You can choose to not live with an active alcoholic, that's your right.