Sealed file box

The utility model relates to the technical field of file boxes, and discloses a sealed file box which comprises a box body, a plurality of sets of fixing plates are fixedly connected in the box body, sliding grooves are formed in the tops of the fixing plates, and two sets of clamping assemblies are slidably connected in the sliding grooves. Two sets of air draft assemblies are fixedly connected to one side of the box body, two sets of cabinet doors are connected to one end of the box body through hinges, a handle assembly is fixedly connected to the top of the box body, sealing strips are fixedly connected to the other sides of the two sets of cabinet doors, and magnetic attraction assemblies are fixedly connected to the bottoms of the other sides of the two sets of cabinet doors. According to the sealed file box, through the arrangement of the clamping assembly, when a user places files of different sizes into the file box, fixing screws are unscrewed, a movable plate slides to a proper position on a slidin