Waterproof and moistureproof 3D (three-dimensional) wall structure

The invention relates to the technical field of 3D (three-dimensional) walls, in particular to a waterproof and dampproof 3D wall structure which comprises a building wall, and a 3D wall poster is fixedly mounted on the building wall. According to the waterproof and moistureproof 3D wall structure, in the process that a pedal, a shaft rod and a cam drive a base to control a front plate and a rear plate to move and switch a 3D wall surface B and a 3D wall surface A, long convex columns and short convex columns are adjacently arranged, and the thickness of absorbent cotton arranged on the long convex columns and the short convex columns is larger than a gap between the long convex columns and the short convex columns, so that when the long convex columns and the short convex columns move in a relatively staggered mode, the long convex columns and the short convex columns are separated from each other; the water absorption cotton can be extruded, water absorbed by the water absorption cotton is pressed into the