The invention relates to a welding fume recycling-purifying device. The welding fume recycling-purifying device comprises a frame and a fume recycling-purifying device which is fixedly arranged on the frame, wherein the fume recycling-purifying device comprises a shell, and a turbulent ball catching layer, a fume filtering layer, a fume adsorption layer and a fume ventilation layer which are distributed in sequence in the shell from bottom to top; gaps are reserved among the turbulent ball catching layer, the fume filtering layer, the fume adsorption layer and the fume ventilation layer; the turbulent ball catching layer, the fume filtering layer and the fume adsorption layer are detachably connected to the inside of the shell. Compared with the prior art, the welding fume recycling-purifying device has the advantages of low design cost, simple structure and good fume recycling-purifying effect; waste fume produced by welding is absorbed by comprehensively utilizing turbulent ball catching, glass fiber filter element board filtering and active carbon adsorption, and reaches an emission standard after being purified; meanwhile, a sound-attenuation board with a certain oblique angle is arranged, so that noise can be reduced in the running process of a fan; the welding fume recycling-purifying device has a compact structure and a high automation degree, and is convenient and easy to operate.