Hot air drying high voltage isolation box

A hot air drying high voltage isolation box of the utility model, which belongs to the technical field of power transmission and distribution apparatus, is used for solving the insulating performance problems of the high voltage isolation box. The scheme is the existing high voltage isolation box is provided with a dryer and an air blower, and the body of the high voltage isolation box is provided with an air inlet and an air outlet connected with the dryer and the atmosphere. The utility model changes the air-proof heat drying mode to a hot air flowing heat drying mode. The heating temperature of air can be lowered from the original 120 centi-degrees to 40-60 centi-degrees, which can prevent condensation of moisture, eliminate creepage, and increase the insulating performance of the high voltage isolation box. Since a good deal of electric energy is saved by decreasing the heating-up temperature, the utility model adapts for being equipped and used in facilities such as electric precipitator.