Multi-stage hydraulic jump type dredging ditch system, treatment method and equipment

The invention discloses a multi-stage hydraulic jump type dredging ditch system, a treatment method and equipment. The system comprises a hydraulic jump gate and a multi-stage ditch, when the metal knot part of the hydraulic jump gate of the multi-stage ditch is closed, the water flow is accelerated through the ditch; when the hydraulic jump gate metal knot part of the hydraulic jump gate in the head-end-stage ditch is opened, hydraulic jump is formed; sludge at the bottom of the channel is brushed through hydraulic jump, and water flow containing the sludge is formed and flows into the second-stage channel; when it is detected that the sludge in the head-end-stage ditch is washed and brushed, a gold junction part of a hydraulic jump gate in the head-end-stage ditch is closed; meanwhile, the gold knot part of the second-stage hydraulic jump gate is opened; the circulating steps are repeated until the sludge of the tail-stage ditch is washed and brushed; and after the tail-end-stage ditch finishes sludge washi