Pipeline paint spraying and brushing device

The utility model discloses a pipeline paint spraying device which comprises a fixing seat, a receding hole is formed in the top face of the fixing seat, a pipeline is arranged above the receding hole, the side face of the pipeline abuts against a plurality of side supporting assemblies, and the side supporting assemblies are fixedly connected with the top face of the fixing seat. A brushing unit is arranged in the pipeline, the top end of the brushing unit is rotationally connected with a chain, and one end of the chain is in transmission connection with an external winding machine. The brushing unit comprises a rough brushing assembly, the top end of the rough brushing assembly is fixedly connected and communicated with a conveying pipe, the bottom face of the rough brushing assembly is fixedly connected with a positioning assembly, the bottom face of the positioning assembly is fixedly connected with a motor, the motor is vertically arranged, and a rotating shaft of the motor is in transmission connection