Tailing slag collecting and treating device

The utility model provides a tailing collecting and processing device, and relates to the technical field of paper production. The tailing collecting and treating device comprises a liquid tailing recycling box and an outer frame, the outer frame is arranged at the top of the liquid tailing recycling box, a filter screen frame is arranged in the outer frame, a limiting assembly is arranged between the filter screen frame and the outer frame, a cleaning brush is arranged at the bottom end in the filter screen frame, and the filter screen frame makes contact with the cleaning brush. According to the tailing collecting and treating device, a disc drives a second cylindrical block to do eccentric motion, rotation of the second cylindrical block pulls a first cylindrical block to do linear reciprocating motion through a pulling plate, so that a cross-shaped rod slides in a cross-shaped groove, and the cross-shaped rod drives a connecting rod fixedly connected with the bottom of a connecting plate to do linear reci