The utility model relates to an automatic dust removal environmental protection system of mud jacking equipment, it includes the frame, sets up the dust collector on the frame and set up at the PLC of frame front end assembly electric cabinet, dust collector is including setting up the closed high -speed agitator tank on the frame, with seal the closed automatic feeding machine that high -speed agitator tank is linked together and set up passing through the connecting pipe and sealing the dust collector that high -speed agitator tank and closed automatic feeding machine are linked together at frame the back -end, special dust collector has been set up on automatic mud jacking platform truck, dust collector can absorb the dust that mud jacking equipment produced in the course of the work and recycle, the effectual construction operation environment that has improved, the operation workman need not to wear special dust mask, can ensure also that construction operating personnel is healthy.