Horizontal circulating water treatment device

The utility model relates to a horizontal circulating water treatment device which comprises a box body, a water inlet pipe penetrates through the left side of the upper end face of the box body, a water outlet pipe penetrates through the right side of the lower end face of the box body, fixing plates are arranged at the left end and the right end in the box body, and a splitter plate is connected between the two fixing plates. Through holes are symmetrically formed in the two fixing plates, baffles are rotationally arranged on the two fixing plates, the baffles and the two through holes on the same side are uniformly arranged in the circumferential direction, rotating shafts are arranged on the two baffles, the two rotating shafts extend outwards to penetrate through the box body, and driving motors are connected to the outer side ends of the two rotating shafts. Filter screens are detachably arranged at the front end and the rear end in the box body; due to the design of the baffle, non-stop overhaul operat