Water drive does not have electrical drainage fan

The utility model discloses a water drive does not have electrical drainage fan, the present invention comprises an outer shell, shell no. 1 is served and is equipped with water inlet pressure boost assembly, and the shell other end is equipped with the delivery port, be equipped with hollow cavity in the shell, hollow cavity adopts left cavity, right side cavity parcel encircles on the shell, there is the interval between left side cavity and the right cavity, and left cavity is installed at water inlet pressure boost assembly with right cavity simultaneously, in the delivery port, utilize the circulation fire water circulation in the hull to drive rotating?impeller, through carrying out initial pressure boost to water inlet pressure boost assembly to the fire water, secondly, hollow cavity adopts the shape design who differs in size, further increase the water pressure size, it strikes to carry out opposite direction to the curved surface impeller assembly, increase pivoted centrifugal force, the life of ex