Building balcony canopy

The utility model discloses a building balcony canopy, relates to the technical field of canopies, is used for solving the problem that an existing building balcony canopy is inconvenient to clean, and comprises a water tank base, a telescopic support, a rectangular plate and a canopy body, the top of the water tank base is fixedly connected with the telescopic support, and the top of the telescopic support is movably connected with the rectangular plate. A canopy body is fixedly installed on the side portion of the rectangular plate, a containing plate is fixedly connected to the rear portion of the canopy body, a rectangular strip is fixedly installed on the top of the containing plate, a sliding groove is formed in the middle of the rectangular strip, a motor is fixedly installed on the top of the right end of the rectangular strip, the output end of the motor is connected with a threaded rod, and the rectangular strip is movably connected with a sliding block through the sliding groove. A threaded hole is