PURPOSE: To manufacture a dust collector of a combined wood working machine to be able to collect dust by means of a single dust collecting hose by bringing together chip discharge outlets of a combined wood working machine consisting of a hand feed planer section, an automatic planer section and a circular saw section.

CONSTITUTION: Dust collecting tubes 5, 10 and 19 laid respectively as the pipings in a base 17 are connected with a hood 4 installed on a chip discharge outlet of a hand feed planer section, a hood 9 installed on a chip discharge outlet of an automatic planer section and a hood 15 installed on a chip discharge outlet of a circular saw section. Suction holes of the dust collecting tubes 5, 10 and 19 are connected with a suction hole of a collecting tube 18 in the base 17, and a suction hole of a dust collector 23 is connected with a discharge outlet of the dust collecting tube 18, while the discharge outlet of the dust collector 23 is protruded outside the base 17. Shutters 20, 21 and 22 are provided at the connecting sections of dust collecting tubes 5, 10 and 19 of the collecting tube 18. Thus three outlets are gathered together into one discharge outlet, which makes a working site not complexed and saves the replacement frequency of hoses.