He leaves from home for two days.改错.

leaves改成has left

He has been away from home for two days.
希望满意！

He has been away from home for two days.
leave 是瞬间动词，for two days 是一段时间所以不能连用，而 be away from 是表示状态，这里表示离家两天

He left from home two days ago.