Green building curtain wall easy to clean

The utility model discloses an environment-friendly building curtain wall easy to clean, which comprises a curtain wall main body, fixing plates are mounted on two sides of one end of the curtain wall main body, sliding grooves are formed in the sides, close to each other, of the two fixing plates, sliding blocks are connected to the inner sides of the two sliding grooves in a sliding manner, springs A are arranged at the bottoms of the two sliding grooves, and springs B are arranged at the bottoms of the two sliding grooves. A pulling plate is jointly installed on the sides, close to each other, of the two sliding blocks, a pulling rope is arranged in the middle of the bottom of the pulling plate, one side of the pulling rope penetrates through the inner side of the curtain wall body and is provided with a handle, and a scraping piece is arranged at the top of one end of the pulling plate; through mutual cooperation of the pull plate, the pull rope, the water box, the sliding groove, the rolling groove, the