Crushing device and deep well dredging system

The utility model belongs to the technical field of garbage cleaning, and relates to a crushing device and a deep well desilting system.The crushing device comprises a spherical shell, a fragment groove and a plurality of sets of cutters, and each set of cutters comprises a fixed grid fixed to the inner wall of the spherical shell and a rotary cutter head rotationally connected to the fixed grid; the rotary tool bit rotates around the axis of the fixed grid; the deep well dredging system comprises a hydraulic mechanism, a first hydraulic pipeline, a positive displacement pump and the crushing device, the positive displacement pump and the garbage collecting device are arranged in a deep well, and the hydraulic mechanism is arranged at a wellhead of the deep well and connected to the positive displacement pump through the first hydraulic pipeline so as to provide hydraulic power for driving the positive displacement pump to work; according to the crushing device and the deep well dredging system, the garbage t