Inner wall spraying device

The utility model provides an inner wall spraying device, relates to the technical field of wall surface spraying, and solves the problem that when the spraying device is used for spraying, spray paint leaked and sprayed out of a nozzle can drip and accumulate in a protective cover, so that the spray paint can flow along the protective cover and drip onto the ground. A liquid storage barrel is arranged on the top of the base, a push handle is arranged on the side, close to the liquid storage barrel, of the top of the base, a water pump is arranged on the side, away from the push handle, of the liquid storage barrel, a vertical rod is arranged on the top of the base, a telescopic rod is connected to the top of the vertical rod, and a spraying cover is arranged on the portion, close to the top, of the telescopic rod. A collecting assembly is arranged in the middle of the flowing slope, a flowing cavity is formed in the bottom of the spraying cover, the collecting assembly obliquely extends to communicate with t