DUST COLLECTOR OF MACHINE TOOL

A dust collector for a machine tool is disclosed. The dust collector for a machine tool comprises: a combining unit (3) which penetrates a housing (2) of a machine tool equipped with a processing unit (1) for processing a workpiece; a dust collector body (10) with an open front side, composed of an insertion unit (11) which is formed at the external back side thereof in order to be inserted into the combining unit, a suction unit (12) which is formed in the insertion unit (11), a cutting fluid discharge unit (13) which is formed on the inner bottom thereof, and a cutting fluid storing unit (14) which communicates with the fluid discharge unit (13); a first filter body (20) which is installed in the suction unit (12) of the dust collector body (10); a second filter body (30) which is included inside the dust collector body (10) and is positioned at one side of the first filter body (20); a third filter body (40) which is included inside the dust collector body (10) and is positioned at one side of the second filter body (30); a rotating motor (51) which is fixated to the external front side of the dust collector body (10); a suction fan (50) which is installed in the rotating motor (51) with a shaft; and a cutting fluid collecting container (60) which is inserted into the cutting fluid storing unit (14) of the dust collector body (10) in a drawer type. Therefore, because the insertion unit of the dust collector body is directly combined with the housing of the machine tool, the dust collector for a machine tool can significantly improve dust collecting efficiency, can definitely filter a processing chip, a cutting fluid, etc. through each of the filter bodies, and can prevent the accumulation of processing chips sucked by the cutting fluid through easy collection of the cutting fluid sucked along with the processing chips.