If he is drunk and threatens to hurt you, call the police. Some hours in the drunk tank and a possible RO is a cold dose of reality much-needed by an alcoholic. However, as posted above, if you are at risk please also contact 1-800-799-SAFE for advice about how to best deal with a potentially violent husband.
This is excellent advice. In this instance you must put your own protection first. There is nothing you can say or do to stop an alcoholic from drinking but you can take care of yourself. I'm so very sorry this has happened.