Water resource protection and purification device

The utility model relates to the technical field of water resource purification, in particular to a water resource protecting and purifying device. According to the technical scheme, the device comprises a central stand column and a purification floating bed, the periphery of the top end of the central stand column is rotationally connected with a rotating sleeve, the outer wall of the rotating sleeve is slidably sleeved with a central floating bed, a motor is installed on the inner wall of the bottom of the central floating bed, an output shaft of the motor is fixedly connected with a threaded rod, and the periphery of the threaded rod is in threaded connection with an inner threaded block; the inner threaded block is fixedly installed on the inner wall of the bottom of the purification floating bed, a storage battery and an aerator are installed on the inner wall of the bottom of the purification floating bed, and a first flow dividing pipe is fixedly connected to the bottom of the purification floating bed