NOVELTY - The waste water processing device has an anaerobic reaction tank (6) of double layered construction arranged in aslant manner, a pre-process acidification tank (1) and pH value adjusting homogenate tank (3) arranged under the reaction tank, a waste water and biogas residue tank (21) arranged under and connected to the outlet of the reaction tank, and a biogas desulfurizing tank (16) and a biogas compressing and storing tank (15) set above the reaction tank. A solar energy plate (11), set outside the reaction tank, is connected to a storage battery (9) connected to a heater (10).    USE - High-efficiency waste water processing device e.g. for use in raising livestock and poultry in extremely cold areas.    ADVANTAGE - Achieves high-efficiency yet low cost waste water processing even during e.g. winter, since processing is completely performed using solar heating fermentation.    DETAILED DESCRIPTION - The waste water processing device has an anaerobic reaction tank (6) of double layered construction arranged in aslant manner, a pre-process acidification tank (1) and pH value adjusting homogenate tank (3) arranged under the reaction tank, a waste water and biogas residue tank (21) arranged under and connected to the outlet of the reaction tank, and a biogas desulfurizing tank (16) and a biogas compressing and storing tank (15) set above the reaction tank. A solar energy plate (11), set outside the reaction tank, is connected to a storage battery (9) connected to a heater (10). The anaerobic reaction tank has three reacting areas defined by at least two division plates (7), rotating stirrers (8) mounted on the division plates, three phase separators (18) and a temperature controller (17) at the inner layer, and a hot water chamber (20) at the outer layer. The hot water chamber is connected with the heater.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of a high-efficiency waste water processing device.    Pre-process acidification tank (1)    pH value adjusting homogenate tank (3)    Anaerobic reaction tank (6)    Division plates (7)    Rotating stirrers (8)    Storage battery (9)    Heater (10)    Solar energy plate (11)    Biogas compressing and storing tank (15)    Biogas desulfurizing tank (16)    Temperature controller (17)    Three phase separators (18)    Hot water chamber (20)    Waste water and biogas residue tank (21)