Vacuum exhaust sterilizer

The utility model relates to the technical field of sterilization equipment, and discloses a vacuum exhaust sterilizer which comprises an installation box mechanism and a sterilization box mechanism, the sterilization box mechanism comprises a sterilization box, the sterilization box is fixedly connected in the installation box, the sterilization box is connected with a sterilization box door through a hinge, the sterilization box is fixedly connected with a vacuum pump, and the vacuum pump is connected with the sterilization box door through a hinge. The speed of harmful gas containing bacteria and the like entering the sterilization box can be increased through suction of the vacuum pump, the working time is shortened, the harmful gas enters the sterilization box and is subjected to ultraviolet sterilization through the ultraviolet sterilization lamp, and high-temperature sterilization is conducted through the middle of the heating pipe; and the ultraviolet sterilizing lamp, the heating pipe and the filter