Device for recycling fresh-keeping gas in fresh-keeping refrigerator

The invention relates to a device for recycling fresh-keeping gas in a fresh-keeping refrigerator. The device comprises a plurality of storage chambers for storing foods needed to be preserved, a nitrogen-oxygen separating device for providing the fresh-keeping gas to the storage chambers and a vacuum pump communicated with a gas outlet of the nitrogen-oxygen separating device, wherein a plurality of storage chambers are separated from one another in a sealed manner and respectively provided with a storage chamber door which can seal the storage chambers, and each storage chamber is respectively provided with a gas outlet and a gas inlet; the gas outlets of the storage chambers sequentially penetrate through a gas distribution device and a stench or organic gas releasing device and are communicated with a gas inlet of the nitrogen-oxygen separating device, and the gas inlets of the storage chambers respectively penetrate through the gas distribution device and the vacuum pump and are communicated with a fresh-keeping gas outlet of the nitrogen-oxygen separating device; and a gas circulation loop is formed by the storage chambers, the gas distribution device, the stench or organic gas releasing device, the nitrogen-oxygen separating device and the vacuum pump. By the device for recycling the fresh-keeping gas in the fresh-keeping refrigerator, the fresh-keeping time is prolonged, the fresh-keeping quality is improved, the energy consumption is reduced, and the cross contamination of the foods is reduced.