The invention relates to a dust collection roller machine. The dust collection roller machine comprises a frame, a feed hopper, a receiving hopper and two extrusion rollers; the receiving hopper is positioned below the feed hopper; the two extrusion rollers are embedded in the lower part of the feed hopper in a relative rotating manner, and two ends of the two extrusion rollers are both connectedwith the frame; the two extrusion rollers are both cylindrical; multiple extrusion bars are uniformly distributed on the surface of each extrusion roller; each extrusion bar is welded on the extrusionroller thereof; when the two extrusion rollers are rotated, the approaching extrusion bars are always kept in engagement; and a dust collector is arranged on one side of the feed hopper. Compared with the prior art, the dust collection roller machine is simple in structure, low in cost and long in service life; and the dust collector collects dust in the feed hopper to reduce the dust emission, so that the operation environment is improved.