Fresh air treatment device with heat recovery function

The invention provides a fresh air treatment device with a heat recovery function, and relates to the technical field of fresh air treatment devices.The fresh air treatment device comprises a fresh air treatment machine, a filtering mechanism convenient to replace and disassemble is arranged on the fresh air treatment machine, and a protection mechanism convenient for protecting the filtering mechanism is used on the fresh air treatment machine; the fresh air processing machine is provided with a supporting mechanism facilitating use of the fresh air processing machine, the filtering mechanism comprises a connecting plate and a filtering plate, the protection mechanism comprises a pulling plate and a first protection plate, and the supporting mechanism comprises a transverse rod. According to the device, a pulling plate, a connecting shaft and a connecting plate are arranged to be matched, when filter plates in the fresh air processing machine need to be cleaned and replaced, parts of the fresh air processing