Double-layer curtain wall structure

The utility model discloses a double-layer curtain wall structure which comprises a curtain wall plate, a fixing supporting plate is integrally formed on the side edge of the curtain wall plate, a threaded hole is formed in the surface of the fixing supporting plate, a connecting column is arranged on one side of the curtain wall plate, a face plate is installed at the other end of the connecting column, and the face plate is connected with the connecting column. And a fixed mounting piece is detachably mounted on the surface of the fixed supporting plate, a threaded through opening is formed in the surface of the fixed mounting piece, and a locking bolt is mounted on the surface of the fixed mounting piece in a threaded mode. According to the scheme, the curtain wall plates are firmly mounted by arranging the fixed mounting piece, the locking bolt, the bottom supporting plate and the rubber pad through mutual cooperation of the fixed mounting piece, the locking bolt, the bottom supporting plate and the rubbe