A stationary cutting machine for metalworking, backflow of, for example, sparks toward an operator is prevented. A dust collector box is installable behind a cutting blade of a stationary cutting machine for metalworking for cutting a workpiece including a metal material. The dust collector box is installable adjacent to a placement surface for the workpiece. The dust collector box includes a dust collecting port that receives sparks generated during cutting of the workpiece, a dust collecting passage through which the sparks received at the dust collecting port are to flow rearward, and a guide that guides the sparks into the dust collecting passage and prevents the sparks entering the dust collecting passage from flowing back to the dust collecting port.
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