Three-dimensional painting device for art design

The invention relates to the technical field of artwork painting, and particularly relates to a three-dimensional painting device for art design. The three-dimensional painting device can be suitablefor painting work of high artworks, the height of the three-dimensional painting device can be conveniently adjusted, different coatings are stored in a classified mode, the structure is novel, and the practicability is improved. The three-dimensional painting device comprises a base, a driving motor, two sets of threaded rods, a coating box, a plurality of sets of pigment boxes, a plurality of sets of arc-shaped plates and a step table, wherein a cavity is formed in the rear side of the top end of the base; threaded pipes are rotatably connected to the left side and the right side of the inner bottom wall of the cavity; the top ends of the two sets of threaded pipes penetrate through the inner top wall of the cavity and extend out of the cavity; driven wheels are connected to the bottomsof the outer sides of the two sets of threaded pipes in a sleeving mode; the driving motor is installed on the rear side of the top end of the base; the output end of the driving motor is connected with a transmission shaft; the bottom end of the transmission shaft extends into the cavity and is rotatably connected to the inner bottom wall of the cavity; two sets of driving wheels are connected tothe outer side of the transmission shaft in a sleeving mode; and the two sets of driving wheels are connected with the two sets of driven wheels through belts correspondingly.