The invention provides a glass kiln cooling part pool bottom cooling apparatus, which comprises an air blasting device (1), wherein one end of the air blasting device (1) is communicated to an air supply pipe (2), one end of the air supply pipe (2) is communicated to a horizontal pipe (3), the horizontal pipe (3) is connected in parallel with a set of air pipes (4), and the air pipes (4) are provided with a set of air blowing pipes (5) corresponding to a kiln cooling part. According to the present invention, the apparatus has advantages of simple structure and convenient use, and adjusts the temperature of the glass liquid in the cooling part by adjusting the amount of the cold air at the kiln cooling part pool bottom, such that the glass forming temperature is stable, and the problem of glass quality reducing caused by neck water pocket increasing or dilution air volume increasing can be avoided.