Numerical control machine tool

The invention belongs to the technical field of machine tool equipment, and particularly relates to a numerical control machine tool which comprises a machine tool body (1), a machine head cross beam(2), a main dust suction pipe (8) and a main shaft motor (510) and further comprises a table top sweeping device (3), a height-controllable main shaft dust suction hood device (5) and a gas-liquid mixed spraying device (7). The numerical control machine tool has the advantages and positive effects that (1), a dust collector is arranged on one side of the machine head cross beam and moves along with the machine head cross beam, so that the arranged dust suction pipe is very short, the suction attenuation is avoided, the dust suction effect is very good, and the working requirements of main shaft dust suction and table top sweeping dust suction can be met; (2), the table top sweeping device can move along with the machine head cross beam to conduct dust suction and sweeping operation on a table top; (3), the height