The invention provides an air purifying device for livestock breeding, and relates to the technical field of an air purifying device. The air purifying device for livestock breeding comprises a base;the top part of the base is fixedly equipped with a blower base. According to the air purifying device for livestock breeding, waste gas in a livestock breeding house can enter the inner part of the purifying box through the cooperation of an exhaust fan, an air inlet pipe, an air outlet pipe, a purifying box, a water pump, a fluid box, a fluid inlet pipe, a fluid outlet pipe, a spray disk, an atomizing sprayer, a coal residue absorbing layer and a charcoal absorbing layer and the pumping effect of the exhaust fan; the water pump extracts the deodorant solution in the fluid box to spray from the atomizing sprayer so as to purify the waste gas; meanwhile, the coal residue absorbing layer and the charcoal absorbing layer can absorb the odor discharged from the livestock breeding house; in conclusion, the air purifying device for livestock breeding has good purifying device, thus the livestock breeding house can keep fresh air at every moment.