Dry waterproof corrugated board

The utility model discloses a dry waterproof corrugated board, and particularly relates to the technical field of corrugated boards, the dry waterproof corrugated board comprises an outer board and an inner board, a waterproof layer is arranged on the surface of the outer board, a connecting layer is arranged between the outer board and the inner board, a reinforcing rib is arranged on one side of the connecting layer, vent holes are formed in the inner board, and the vent holes are communicated with the outer board. A mounting groove is formed in the outer plate, a drying box is arranged in the mounting groove, and a mounting assembly is arranged at the joint of the drying box and the mounting groove. According to the moisture-proof paperboard, moisture in air can be absorbed in the ventilation process of the paperboard, meanwhile, water drops can be prevented from remaining on the surface of the paperboard for a long time until permeating into the paperboard, the moisture-proof performance of the paperboard