Waterproof plate structure for house building

The utility model discloses a house building waterproof plate structure, and relates to the technical field of waterproof plates, the house building waterproof plate structure comprises a first waterproof layer, a fireproof layer is arranged on one side of the first waterproof layer, a silencing layer is arranged on the side, away from the first waterproof layer, of the fireproof layer, and a base layer is arranged on the side, away from the fireproof layer, of the silencing layer; an electric push rod is arranged in the base layer, a deflection plate is arranged on the side, away from the silencing layer, of the base layer, the left end of the deflection plate is connected with the left end of the base layer through a hinge, and the bottom face of the deflection plate is attached to the extending end of the electric push rod. The electric push rod is unfolded and abuts against the deflection plate, the deflection plate is promoted to drive the second waterproof layer to deflect, water stains accumulated on t