Abstract: A water circulation device comprising a hood consists of several water inlet holes and a larger water outlet hole; a water outlet plate with a passing hole in on the center; a revolving plate consists of several protruding stripes surrounding the center and an axis hole is on the center; a container consists of a containing chamber with a chamber hole is on the center for the revolving plate the water outlet plate to be installed inside and is covered by the hood, the containing chamber connects to a back base installed on the inner wall of the water tank, an external motor connects to an axis hole and bring said revolving plate turning, water comes in from the water inlet holes and is ejected from the water outlet hole more stronger.