Coaxial asynchronous dual-drive vortex turbine

The invention provides a coaxial asynchronous dual-drive vortex turbine which comprises a frame (7), a main shaft (3) and rotatable blades (4). The main shaft (3) is vertically arranged in the middleof the frame (7) and is positioned on an input end of an electric generator; the rotatable blades (4) are arranged on the outer edge of the main shaft (3) in the circumferential direction; and blade rotating shafts (6) are hinged to the frame (7). The coaxial asynchronous dual-drive vortex turbine adopts the technical key points that when the frame (7) rotates, a blade main body is always positioned in the frame (7), a polygonal circumscribed circle formed by connecting lines between the blade rotating shafts (6) takes the shape of a perfect circle, the circle center of the perfect circle is positioned on a center shaft of the main shaft (3), and vertical stop levers (9) used for limiting the blades (4) to rotate are arranged on the connecting lines between the adjacent blade rotating shafts (6). The coaxial async