The invention relates to an air purifier adopting an electrostatic dust collection technology and applied to an industrial workshop. The air purifier comprises a base, a purification device, a connecting mechanism and a temperature control box, wherein the connecting mechanism comprises a connecting pipe, a rotating rod and a screw rod, a heating mechanism is arranged in the connecting pipe, and comprises a sleeve, a power supply, a first connecting rod, a second connecting rod, a third connecting rod and a copper mesh, and an aqueous solution, a cooling pipe, a first hose, a second hose and two lifting units are arranged in the temperature control box. According to the air purifier adopting the electrostatic dust collection technology and applied to the industrial workshop, the activity of ozone is enhanced through the exothermic copper mesh which is in the connecting pipe so that the ozone can react conveniently, meanwhile, the connecting pipe is convenient and fast to mount and dismount, the copper mesh can be timely replaced, moreover, the height of the cooling pipe is controlled through the lifting units, then the air heat absorbed by the aqueous solution is adjusted so that the air purifier can adjust the discharged air temperature according to needs, and the practicability of the air purifier is improved.