Double-layer curtain wall with locking connection structure

The invention discloses a double-layer curtain wall with a locking connection structure, and relates to the technical field of curtain walls. Comprising an installation body and an outer frame fixedly installed on the installation body through installation screws. A mounting groove is formed in the outer frame, and buckling pieces are arranged on the four sides of the mounting groove respectively and used for fixing the inner frame in the mounting groove; two curtain wall plates are detachably installed on the inner frame, a partition plate is connected to the side face of the inner frame through a screw fastener, and the two curtain wall plates are separated by the partition plate. A fixing frame is detachably arranged on the end face of the inner frame and used for fixing a curtain wall plate. The disassembly mode is flexible, and the curtain wall can be integrally disassembled; and the hollow glass can be detached independently, the detachment mode is convenient, the operation difficulty is reduced, and th