Self-cleaning type photovoltaic building curtain wall

The invention discloses a self-cleaning photovoltaic building curtain wall, which relates to the technical field of building curtain walls, and comprises a floor plate, a glass curtain wall, a curtain wall frame, a room ceiling plate, and a folding photovoltaic plate and a top photovoltaic plate which are arranged outside the glass curtain wall. According to the glass curtain wall cleaning device, the lifting frame is arranged, and two threaded shafts are matched with two threaded holes in the lifting frame, so that the lifting frame can ascend and descend, a top scraping plate and a bottom scraping plate can scrape the outer wall of a glass curtain wall during ascending and descending, and the purpose of cleaning the glass curtain wall is achieved; a water pump in a water storage tank can be started to supply water to the clear water pipe when cleaning is needed, a gear cylinder can rotate under the limitation of a rack plate when a lifting frame ascends and descends, and the rotating speed of a sweeping sha