Air lift type sewage suction device suitable for aquaculture pond

The utility model discloses an air lift type dirt suction device suitable for an aquaculture pond, which comprises a dirt collecting net bag and a base, the dirt collecting net bag is fixedly communicated with the bottom of the base through a dirt conveying pipe, one side of the bottom of the dirt conveying pipe is fixedly communicated with an air inlet chamber, and the outer wall of the base is rotatably connected with a handle; a base balance weight is fixedly connected to the bottom of the base, a base brush is arranged at the bottom of the base balance weight in a surrounding mode, a water inlet head is arranged at the bottom of the base, and a plurality of universal pulleys are rotationally connected to the inner wall of the base. The device does not need to be powered on in the sewage suction process, reduces the risk of electric shock, does not need to install a special electric circuit in the use process, can be used only by connecting the air inlet pipe, does not need a water pump, can smoothly suck