Double-layer packaging box

The utility model discloses a double-layer packaging box. The utility model belongs to the field of packaging boxes, double-layer packaging box, supporting rod, the upper and lower ends of the supportrod are fixedly connected with support frames respectively; the outer sides of the support rod and the support frame are respectively wrapped with an upper box body and a lower box body; one end of the supporting frame is fixedly connected with a bottom plate. The upper end of the bottom plate is fixedly connected with a buffer plate; the upper end of the buffer plate is fixedly connected with aprotective plate; cover plates are rotationally connected to the left and right ends of the front sides of the upper box body and the lower box body; the supporting rods are connected with the supporting frame; the firmness of the box is improved; through connection of the reinforcing layer, the fireproof layer and the waterproof layer, the firmness of the upper box body and the lower box body isimproved, through connectio