Vacuum high-temp sterilizer

The utility model relates to a vacuum high-temperature sterilizer, which is characterized in that a vacuum pump, an extraction valve, and a pump relay which are used for pumping the vacuum are arranged outside a pressure bin; an air exhaust valve D1 which can exhaust the dry air by three times is arranged on the pressure bin to cause the air exhaust valve D1 to be opened by three times for gradually exhausting the dry air which exists in the pressure bin to the exterior of the pressure bin when the temperature in the pressure bin reaches three different temperature sections for ensuring that the high-temperature and high-pressure steam is filled in the pressure bin. The utility model enables some pipe-shaped utensils and utensils which are wrapped with gauze and are prepared for disinfection to let the high-temperature steam easily enter each gap part. The effects of the disinfection and the sterilization can be improved. In addition, the utility model also has the advantages of simple operation and high sterilizing speed.