The invention discloses a coal mine excavator system with an environment-friendly filter. The coal mine excavator system comprises an air outlet hole, an air collecting cavity, groove bodies, a movable seat, an upper cover, a cover body, air inlet grooves, a handle, a sealing ring, a clamping groove, a plug pin, a fixed seat, a high-pressure air pipe, a collecting device, a base, connecting pipes,dust removal holes, filtering elements, a connecting groove, a connecting hole, an air inlet pipe and a coarse filtration device. In the coal mine excavator system, the arranged coarse filtration device can filter entered air effectively and preliminarily , meanwhile, a clearing motor in the coarse filtration device can drive filtering cylinders to rotate, the exteriors of the filtering cylinderscan be cleared through fixing brushes, and thus the effect of filleting for a long time is improved; an arranged motor can drive the movable seat to drive the filtering elements to rotate, thus it isensured that a part of the filtering elements is in a working state and the other part of the filtering elements can be replaced or reversely cleared, thus the service life of the filtering elementsis greatly prolonged, the demands of long-time work of the excavator system are met, and the working efficiency is also improved.