Physical sewage suction and discharge device for land-based culture round pond

The utility model belongs to the technical field of aquaculture, and particularly relates to a physical sewage suction and discharge device for a land-based culture round pond, which comprises a culture pond, an aeration mechanism and a solid waste collection mechanism, wherein a transverse ladder is arranged at the top of the culture pond, a driving motor is mounted on the transverse ladder, and a transmission gear is arranged on an output shaft of the driving motor; the solid waste collecting mechanism is arranged at the bottom of the culture pond, the aeration mechanism is arranged in the culture pond, and the aeration mechanism can enable water in the culture pond to flow from the middle to the outer side and can also control the vertical moving position of a bubble disc for aeration, so that the solid waste passing space at the bottom of the bubble disc can be adjusted; water flow in the culture pond flows from the middle to the outer side, the oxygen content in the water in the culture pond is increased