▎ 摘　　要

NOVELTY - The utility model claims a water purifying device for aquiculture, comprising a water purifying cylinder, the upper end of the water purifying cylinder is fixedly installed with a medicine adding pipe; the medicine adding pipe is provided with a medicine adding valve; the lower end of the water purifying cylinder is provided with a cylinder cover; one side of the medicine adding pipe is provided with a motor case; the motor box is internally provided with a motor; one end of the motor is provided with a motor shaft; the middle part of the water purifying cylinder is provided with a spiral shaft; the outer side of the spiral shaft is provided with a spiral blade; the outer side of the spiral shaft and the motor shaft are fixedly installed with a belt wheel; and the outer side of the belt wheel is connected with a belt in transmission; using the spiral shaft and the spiral blade; the motor shaft of the motor drives the belt and the spiral shaft and the spiral blade to rotate in the water purifying cylinder, so as to improve the speed of the water flow; using the cylinder cover, can open the water purifying cylinder; the impurity generated by purifying water is discharged, improving the water purifying efficiency.