Cryogenic distillation separation device

The utility model belongs to the technical field of distillation separation devices, particularly relates to a cryogenic distillation separation device, and aims to solve the problems that more dust is accumulated on the surface of a used filter screen, the filter screen cannot be automatically cleaned and needs to be manually cleaned after the existing distillation separation device is used for filtering, on one hand, the filtering effect is influenced, and the working efficiency is low. According to the technical scheme, the air purifier comprises an air filter cartridge, an air inlet is formed in the air filter cartridge, the air filter cartridge is communicated with an air compressor, the air compressor is communicated with a heat exchanger, the heat exchanger is communicated with a storage tank, and a plurality of filter mechanisms are arranged in the air filter cartridge. The metal filter screen cleaning device is simple in structure, gas impacts the multiple wind power blades to drive the rotating rod