Milling machine with workpiece cooling structure

The utility model relates to the technical field of milling machines, in particular to a milling machine with a workpiece cooling structure, which comprises a workbench, a drilling and milling head and a filter tank, the drilling and milling head is arranged at the upper end of the workbench, the right end of the drilling and milling head is fixedly connected with a vertical rod through an adjusting block, and the lower end of the vertical rod is fixedly connected with an adjusting rod through an adjusting screw. A water pipe is fixedly connected to the upper end of the adjusting rod, a guide plate is fixedly connected to the inner side of the upper end of the workbench, a filter tank is rotationally connected to the middle of the inner side of the guide plate, an arc-shaped rack plate is fixedly connected to the outer side of the right end of the filter tank, and a linear rack plate is connected to the lower end of the arc-shaped rack plate in a meshed mode. By means of the guide plate, the guide groove, the