The utility model discloses a spiral vertical axis aerogenerator, include: the generator is connected and is being sent out the epaxial blade axle of motor drive, its characterized in that still includes: fix at the epaxial blade of blade, the blade centers on blade axle spirality, the windward side of blade is the concave curved surface structure. The surface of the windward side of blade is equipped with the scrobiculate arch. The surface of blade scribbles hydrophobic nano -material and constitutes the hydrophobic coating. The surface of blade is equipped with horizontal strengthening rib, be equipped with the water -guiding hole on the horizontal strengthening rib. The utility model provides a present spiral and H shape vertical axis generator structural feature have been integrated to the impeller of generator, and the blade surface scribbles super -hydrophobic nano -material, and moisture content was difficult for condensing during cooperation scrobiculate surface texture made the air, and every impeller strengthening rib is opened with the blade joint portion has the water -guiding hole, makes things convenient for and lets out under the water droplet. In especially adapted china, the eastern region uses, especially coastal area, islander are ordered etc..