The invention discloses welding equipment for rapid cooling and quenching of atomized water. The welding equipment comprises a quenching tank, a mounting groove is formed in the quenching tank, a transition tube is fixedly connected with the interior of the mounting groove, and a through groove runs through the quenching tank. A water adding pipe is fixedly connected with the interior of the through groove, and an atomizing nozzle is fixedly connected to the transition tube. Compared with traditional gas quenching and water quenching, by means of atomized quenching, the quenching speed can bebetter controlled, so that defects of the surface of a quenched workpiece are fewer, the workpiece is more complete, and the product quality is improved. The quenching tank is arranged below an atomizing and quenching device, water resources can be repeatedly utilized, and a conservation effect is achieved. Compared with a traditional water storage tank, the occupied area is smaller, and the sizeis smaller. By means of multiple filtering devices, impurities of the repeatedly used water can greatly reduced. The filtering devices of the equipment are all convenient to dismount and mount, and the filtering devices can be conveniently replaced or cleaned.