Efficient photovoltaic power generation device suitable for high-rise building

The utility model relates to the technical field of photovoltaic power generation, in particular to a high-efficiency photovoltaic power generation device suitable for a high-rise building, which comprises a photovoltaic power generation panel. The flushing assembly is used for performing liquid spraying flushing on the surface of the photovoltaic power generation panel and comprises a water tank; the water collecting piece is arranged at the lower end part of the photovoltaic power generation panel and is provided with a water collecting tank; the water collecting tank is communicated with a water inlet pipe of the water tank, and a filter screen part is arranged in the water tank opposite to the water inlet pipe and is provided with filter holes; a sweeping piece is arranged on one side, facing the water inlet pipe, of the filter screen piece, and is provided with a part in contact with the filter screen piece; and the sweeping piece is connected with a sweeping piece driving device. According to the effici