Water body purifying and filtering device for aquaculture

The invention belongs to the technical field of aquaculture, and discloses a water purifying and filtering device for aquaculture, which comprises a base, a water tank and a water purifier, the water tank and the water purifier are arranged at the top of the base, the water purifier is provided with a drain pipe, and the base is provided with a first water pump and a second water pump which are communicated with the water tank. The water tank is connected with a connecting pipe through a first electric control three-way valve jointly communicated with a first water pump and a second water pump, the connecting pipe is provided with a filter barrel through a water inlet pipe provided with a first pressure sensor, and a first filter screen connected with an impurity removal assembly is arranged in the filter barrel. The filter barrel is connected with a blow-off pipe through a second electric control three-way valve, and a waterproof microcomputer controller is arranged at the top of the base. Water to be purifi