Cell cryopreservation cooling box fixed by utilizing air pressure

The invention relates to the technical field of genetic engineering equipment, and discloses a cell cryopreservation cooling box fixed by utilizing air pressure. The cell cryopreservation cooling boxcomprises an outer box body, an inner box body is slidably connected on the inner side wall of the outer box body; clamping blocks are fixedly connected to the periphery of the upper surface of the inner box body, an upper column body and a lower column body are fixedly connected to the joint of the inner box body and the outer box body, containing cavities are formed in the upper column body andthe lower column body, and a first one-way valve is fixedly connected to the bottom of the upper column body. The inner box body is firmly fixed in the outer box body; shaking and sliding-out are noteasy to occur; meanwhile, one side of the lower column body is connected with an air bag through an air bag pipe, air is pumped into the air bag while air pumping is conducted, the size of the air bagat the bottom of the inner