Numerical control milling machine capable of conveniently removing machining chippings on surface of workpiece

The utility model relates to the technical field of milling machines, in particular to a numerical control milling machine facilitating removal of machining chippings on the surface of a workpiece. According to the technical scheme, the device comprises a movable portal frame, a spindle box, a lifting table, a base and a milling cutter, the output end of the spindle box is fixedly connected with an output shaft, an impeller is fixedly installed on the outer surface of the output shaft, a housing is fixedly installed on the lower surface of the spindle box, the impeller is located in the housing, and a universal pipe is fixedly connected to the outer surface of the housing; and the tail end of the universal pipe is fixedly connected with an air nozzle. Milling chips on the surface of a workpiece can be cleaned in time, meanwhile, the operation temperature of the milling cutter is reduced, the structure is simple, the occupied machining space is small, and the cost is low. 本实用新型涉及铣床技术领域，尤其涉及一种便于清除工件表面加工碎屑的数控铣床。