Numerically-controlled machine tool for metal product machining

The utility model discloses a numerical control machine tool for processing metal products, which comprises a numerical control machine tool, a purifying box further comprises a filtering assembly and a spraying assembly, and the filtering assembly is provided with a filtering barrel, a storage barrel and a second barrel cover. Firstly, suction force can be generated through an arranged air suction pump, so that smoke generated by processing can be sucked out through a purification box, a filter barrel and a storage barrel, when the smoke passes through the interior of the purification box, the filter barrel arranged in the purification box can take out part of pollutants in the smoke through activated carbon adsorption, and when the smoke enters the interior of the purification box, the part of pollutants in the smoke can be removed; and the water pump can spray the purification liquid into the gas, pollutants in the flue gas can be removed again, the structure is reasonable, and the numerical control machin