Water circulation device for aquaculture

The invention discloses a water circulation device for aquaculture. The water circulation device structurally comprises a base, a water circulation mechanism, a water outlet, a connecting block, an overflowing hole, a water pump, a fixing base and a support plate, wherein the base is vertically and tightly clung to the top end of the fixing base and is welded with the water circulation mechanism;the water circulation mechanism is vertically mounted at the upper end of the base and is mechanically connected with the water pump; the axes of the water circulation mechanism and the overflowing hole are collinear; the water outlet is horizontally embedded into the connecting block and is in interference fit with the water circulation mechanism; and the cross section of the connecting block isof a rectangular structure and is horizontally clung to the left end of the water circulation mechanism and is welded with the left end of the water circulation mechanism. Due to adoption of the watercirculation mechanism, a p