NOVELTY - The device comprises a lotus type floater (1), an electrolytic machine (3), a solar energy power supply device, and a water inlet pump (4) for feeding water for the electrolysis machine. The lotus type floater is: composed of a hollow floater; and prepared by machining plastic, metal plate, rubber and/or composite material or formed by subjecting plastic, metal, rubber or composite material to injection molding. A blade-shaped floating body (11) floats on a water surface. A tubular floating body is immersed in the water. The solar power supply device is composed of a solar panel (21).    USE - The device is useful for purifying electrolyzed water body (claimed) including eutrophic lake, reservoir, pond, bay and closed water.    ADVANTAGE - The simple device allows economical purification of electrolyzed water body with high efficiency and quality and without smell and contaminants.    DETAILED DESCRIPTION - The device comprises a lotus type floater (1), an electrolytic machine (3), a solar energy power supply device, and a water inlet pump (4) for feeding water for the electrolysis machine. The lotus type floater is: composed of a hollow floater; and prepared by machining plastic, metal plate, rubber and/or composite material or formed by subjecting plastic, metal, rubber or composite material to injection molding. A blade-shaped floating body (11) floats on a water surface. A tubular floating body is immersed in the water. The solar power supply device is composed of a solar panel (21) and a storage battery. The solar panel is installed on the blade surface floater. The storage battery is arranged with in an inner cavity of the blade-shaped floater. The electrolysis machine is mounted on a tubular hand-held electronic product, which is immersed in the water in a lower part of the electrolytic machine. The electrolytic machine is connected with a water outlet of a floater. The water outlet of the floater is connected to a water outlet opening with the floater of the electrolysis machine opening and connected with a water distributor. A lower part of the tubular floating body is provided with a water inlet and a water outlet and connected with an anchor fixed below the water surface. A surrounding part of the surface of the blade-shaped floater is provided with LED decorative strips for beautifying the environment in night. The solar power supply device further comprises a controller. The controller is placed in an inner cavity of the blade-shaped floater, and is composed of a light control switch or an infrared control switch. The water distributor is provided with water outlets. The water outlets of the distributor are placed on a side surface or a bottom part of a water distributor pipe.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a device for purifying electrolyzed water body.    Lotus type floater (1)    Electrolytic machine (3)    Water inlet pump (4)    Blade-shaped floating body (11)    Solar panel. (21)