NOVELTY - A water body treatment and recovery device comprises power supply, an inflating device, a drainage guide pipe, a working pipe, a microbubble generator, a water intake guide pipe, an air conveyor pipe, a float and a float bracket. The power supply is connected with the inflating device through a circuit. Air generated by the inflating device enters the microbubble generator placed in the working pipe through the air conveyor pipe. Pressurized air generates a microbubble flux through pores on the microbubble generator.    USE - Water body treatment and recovery device for tri-dimensionally circulating, oxygenating and purifying water body (claimed).    ADVANTAGE - The device realizes the functions of circulating, oxygenating and purifying water body with large flux in large water area.    DETAILED DESCRIPTION - A water body treatment and recovery device comprises power supply, an inflating device, a drainage guide pipe, a working pipe, a microbubble generator, a water intake guide pipe, an air conveyor pipe, a float and a float bracket. The power supply is connected with the inflating device through a circuit. Air generated by the inflating device enters the microbubble generator placed in the working pipe through the air conveyor pipe. Pressurized air generates a microbubble flux through pores on the microbubble generator. Upper end and lower end of the working pipe are respectively connected with the drainage guide pipe and the water intake guide pipe. A solar generation set, a wind-powered generation set, the inflating device and the drainage guide pipe are carried by the float bracket connected with the float. The inflating device is an inflating pump or an air compressor. The power supply is a solar generation set and/or a wind-powered generation set. The wind-powered generation set comprises a windmill device, a controller, a wind-powered generator, a storage battery and a circuit cable. The solar generation set includes at least one set of solar panel, controller, storage battery and circuit cable.    DESCRIPTION OF DRAWING(S) - The drawing is a perspective view of a device for tri-dimensionally circulating, oxygenating and purifying water body.