Double-duct horizontal shaft breeze wind turbine

The invention discloses a double-duct horizontal shaft breeze wind turbine which comprises an electric generator, a horizontal shaft, a support, a horizontal rotary bearing, a rotating vane, an outer duct, an inner duct, a hub, guide vanes and a vortex generation device. The guide vanes are evenly distributed along the axis of the hub. The lower ends of the guide vanes are all fixedly connected with the hub. The upper ends of the guide vanes are all connected with the inner wall of the inner duct. The hub is arranged at the air inlet end of the inner duct. The vortex generation device is installed on the outer side of the air outlet end of the inner duct. The inner duct is arranged in the outer duct. The rotating vane is mounted at an air outlet of the inner duct and located at the down stream of the guide vanes. According to the double-duct horizontal shaft breeze wind turbine, air outside the wind turbine is guided into the rear side of the wind turbine through the outer duct, and vortexes with flow directions and extension directions distributed in axis symmetry are generated behind the vortex generation device; in this way, low-speed air of the wind turbine is sucked, the pressure difference between the front portion and the rear portion of the wind turbine is increased, and the utilization rate of wind energy of breeze is increased.