Spraying and cleaning equipment for inner surface of pipe fitting

The utility model provides spraying and cleaning equipment for the inner surface of a pipe fitting. The spraying and cleaning equipment for the inner surface of a pipe fitting comprises a positioning mechanism and a spraying and cleaning system, wherein the positioning mechanism is used for installing the pipe fitting; the spraying and cleaning system comprises a nozzle structure, a cleaning circulation system, a high-pressure air water shearing system and an electric control system, wherein the nozzle structure is provided with a plurality of nozzles, and at least a part of nozzles correspond to the pipe mouth of the pipe fitting; the cleaning circulation system is communicated with the nozzle structure; the high-pressure air water shearing system is communicated with a high-pressure air source (P) and the nozzle structure via a pipeline; and the electric control system is used for respectively controlling the cleaning circulation system and the high-pressure air water shearing system to switch on and off. T