Small-pollution and low-cost inverted siphon desilting device and method free of water interruption

The invention discloses a small-pollution and low-cost inverted siphon desilting device free of water interruption. The small-pollution and low-cost inverted siphon desilting device free of water interruption comprises a silt removal cabin, a silt suction pump and a cable. A silt delivery pipe is connected with one side end of the silt removal cabin. A silt removal cabin traction rope is connected with the two side ends of the silt removal cabin. The silt removal cabin comprises silt removal cutters, a cutter rest beam, cutter rest guide rails and a silt removal cabin body. The cutter rest guide rails are arranged on the upper portions of the two sides in the silt removal cabin body, the cutter rest beam is located on the cutter rest guide rails, the silt removal cutters are installed on the cutter rest beam, and each silt removal cutter comprises a rotating cutter head, a transmission shaft, a motor and a communicating pipe. A cutter rest traction rope is connected to the two ends of the cutter rest beam. A