Underwater garbage dredger with anti-wrap scraper

The invention provides an underwater garbage dredger with an anti-wrap scraper. The dredger comprises an operating room, a power device, a hull, a mud storage tank, a front cleaning device with a cutter tooth conveyor belt, a bracket and the anti-wrap scraper. The dredger is characterized in that the operating room and the power device are arranged at the rear part of the hull; the mud storage tank is arranged at the middle part of the hull; the front cleaning device with the cutter tooth conveyor belt and the bracket are arranged in the front of the hull; the lower end of the bracket is fixedly connected with the hull; the upper end of the bracket is connected with the front cleaning device with the cutter tooth conveyor belt through a bracket shaft; the front cleaning device with the cutter tooth conveyor belt comprises cutter teeth and the conveyor belt; the cutter teeth are fixed on the surface of the conveyor belt; the anti-wrap scraper is fixedly connected with the hull through a support rod; a digging