Airflow circulation system of low-temperature plasma cold sterilization system

The utility model discloses an airflow circulation system of a low-temperature plasma cold sterilization system. The airflow circulation system comprises a cold sterilization chamber, a conveying mechanism and a gas circulation mechanism, the conveying mechanism transversely penetrates through the cold sterilization chamber, and galleries communicated with the cold sterilization chamber are arranged at the positions where the conveying mechanism enters and exits from the cold sterilization chamber; the gas circulating mechanism comprises a first gas inlet pipe, a second gas inlet pipe, an exhaust pipe, a circulating pipe and an exhaust pump; the first air inlet pipe is communicated with the gallery; the second air inlet pipe is communicated with the cold sterilization chamber; the first air inlet pipe and the second air inlet pipe are communicated with an inlet of the exhaust pump after being converged; an outlet of the exhaust pump is communicated with an exhaust pipe communicated with the outside; the circu