Dredging self-cleaning device

The utility model discloses a desilting self-cleaning device which comprises a box body, a desilting pump is arranged on the upper surface of the box body, a guide pipe is arranged at the input end of the desilting pump, a filter well is fixedly connected to the inner wall of the box body, a compression spring is fixedly connected to the inner wall of the filter well, and a connecting rod is fixedly connected to the upper end of the compression spring. An arc-shaped filtering plate is arranged at the upper end of the connecting rod, a driving motor is arranged on the front face of the box body, a round rod is arranged on an output shaft of the driving motor, and a plurality of scrapers are arranged on the surface of the round rod. By arranging a compression spring, an arc-shaped filter plate, a scraping plate, a vibration spring, a filter screen and a rotating motor, when sludge falls onto the filter screen, a rotating elastic ball can collide with the filter screen, then the filter screen vibrates, the gener