Circuit board printing machine with dust removal function

The circuit board printing machine with the dust removal function comprises a workbench, a shell is fixedly connected to the top of the workbench, a motor is installed on the left side of the shell, a hydraulic cylinder is fixedly installed on the top of the shell, and the output end of the hydraulic cylinder penetrates through the interior of the shell; the output end of the hydraulic cylinder is fixedly connected with a printing assembly. A threaded rod is rotationally connected to the interior of the shell in a penetrating mode, and the left end of the threaded rod is fixedly connected with the output end of a motor. According to the circuit board printing machine with the dust removal function, dust on a circuit board can be cleaned through left-right movement of a cleaning brush, the dust removal effect is achieved, meanwhile, dust on the surface of the cleaning brush can be cleaned, the subsequent cleaning effect is improved, negative pressure is generated in a suction cup, the circuit board can be adso