Your Dad is really reacting very strange and its obvious that he can't accept the truth that your Mom did pass away. You can't expect much emotional support from him since he can't even handle his own emotional state. He probably does miss your Mom, how can he not, but by behaving like he does is hiding the fact that he is feeling angry and scared about losing your mother. Seeing her belogings just reminds him of the fact that she died.
You should seek to be consoled by other means at this time. Your Dad will realize eventually that what he's doing is wrong, that will make him change his attitude and help himself in dealing with reality.