Please Help!Do you known what type of plant I have?

I had got this beaiful plant and I do not known who to take care of it and I do not know what type it is. Its all green and the leaves are big and in the middle of the plant its this white leavf and everybody I ask they said that it look like an orchid but I seach the internet and couldn't find nothing on orhid because they said it bloom every year and die out please help I don't want to throw the plant away.If you known please let me known.