Motor-driven horizontal double-stage self-cleaning screen filter

The utility model discloses a motor-driven horizontal double-stage self-cleaning screen filter. A horizontal filtering tank is divided into a coarse filtering tank and a fine filtering tank by a partition plate; a water inlet and a water outlet are respectively formed in each of the coarse filtering tank and the fine filtering tank; a circular-barrel shaped coarse filter screen and a fine filter screen are respectively arranged in the coarse filtering tank and the fine filtering tank, two ends of the coarse filter screen are respectively connected with the end wall in the coarse filtering tank and the partition plate; an inner port of a sewage conveying tube which is arranged along the axis of the coarse filtering tank is communicated with the fine filtering tank; an outer port of the sewage conveying tube is connected with a drain outlet; a solenoid valve is arranged on the drain outlet; two ends of the fine filter screen are respectively connected with the partition plate of the fine filtering tank and a sealing cover; a motor-driven rotary shaft extends into the fine filter screen; the outer ends of sewage suction nozzles which are uniformly distributed on a sewage suction tube connected with the end part of the rotary shaft are matched with the circular-barrel wall of the fine filter screen; and the sewage suction tube extends into the sewage conveying tube. The motor-driven horizontal double-stage self-cleaning screen filter disclosed by the utility model can realize the automatic cleaning of the filter; the needed water amount is small and the needed water pressure is low during washing; the cleaning time is short; the normal work of a system is not affected by the cleaning; and the investment is saved.