Sputum specimen low-temperature storage and transfer box

The sputum specimen low-temperature storage and transfer box comprises a box body, the upper side wall of the box body is open, the upper side wall of the box body is rotatably connected with a box cover, a locking mechanism is arranged between the box cover and the box body, the inner bottom wall of the box body is fixedly connected with a cooling block, and the inner bottom wall of the box body is fixedly connected with the cooling block. A plurality of cooling cylinders are movably inserted into the upper side wall of the cooling block, inner cavities are formed in the outer walls of the cooling cylinders, cooling grooves matched with the cooling cylinders are formed in the upper side wall of the cooling block, a cooling cavity is formed in the cooling block, and cooling liquid is arranged in the cooling cavity and the inner cavities. According to the sputum specimen box, the sputum specimen box containing sputum is vertically stored, so that the situation that the sputum in the sputum specimen box leaks c