Building decoration equipment capable of automatically polishing and painting arc-shaped wall surface

The utility model discloses building decoration equipment capable of automatically polishing and painting an arc-shaped wall surface. The device comprises a storage bin, a linear motor, an L-shaped plate, an electric telescopic device, a grinding device and a painting device; a linear motor is fixed to one end of the top of the storage bin. An L-shaped plate is fixed at the rotor end of the linearmotor; electric telescopic devices are symmetrically fixed on one side of the L-shaped plate; a grinding device and a painting device are fixed to one ends of the two electric telescopic devices on the L-shaped plate correspondingly. The electric telescopic device comprises an electric push rod, a fixed plate, a telescopic rod, a mounting plate and a spring; electric push rods are symmetrically fixed on one side of the L-shaped plate; a fixed plate is fixed at one end of each of two electric push rods on the L-shaped plate; the building decoration equipment capable of automatically polishingand painting the arc-shape