I think you’ve made a very brave decision. You may also save his life by making him see enough is enough of the way he’s living.
His addiction is selfishly dragging your life down and destroying your relationship with your children.
I know there are a lot of things to worry about now such as where he will live etc but honestly please put yourself and your children first right now and spend some quality time with them that you’ve all missed out on.
good luck whatever you do xx