To recover dust scattered under a working base by cutting a workpiece.

The cutting machine comprises a circular saw cutter 2 provided above a working base 1 and a circular saw 2a inserted to a saw guide groove 3 formed at the base 1 in such a manner that the saw 2a is so provided as to be longitudinally movable on the base 1 in the horizontal direction at the cutter 2 along the groove 3. A trough 4 for recovering dust is provided to cover the groove 3 from its lower surface side from the lower surface side, a strip plate reel 5 so wound as to be able to feed the strip plate 5c of a measuring tape state is provided at the rear end in the trough 4, and the end or the vicinity of the end of the plate 5c is coupled to the cutter 2.