Coal mine low-concentration domestic sewage purification and recovery device

The utility model discloses a coal mine low-concentration domestic sewage purification and recovery device which comprises a base, a first water pump, an air pump, a mounting frame and a cleaning mechanism for pretreating sewage are fixedly mounted on the top surface of the base, the output end of the first water pump is communicated with a water pumping pipe, and the cleaning mechanism comprises a raw water tank fixedly mounted on the top surface of the base; movable grooves are formed in the left side and the right side of the raw water tank, screw rods are movably mounted in the movable grooves, and driving motors are fixedly mounted on the two sides of the top surface of the raw water tank. According to the purification and recovery device for the low-concentration domestic sewage of the coal mine, impurities after filtration can be conveniently cleaned through the arranged movable frame, during cleaning, a driving motor is started to drive a screw rod to drive the movable frame to rise through a movable