An air dryer system to keep brakes free from ice and water. The air dryer system includes a canister having a side wall and a bottom defining an upwardly opening chamber. A lid may be removably secured to the canister for an air tight closure of the chamber. A ball valve is coupled to the bottom of the canister. A t-connector is coupled to the canister via the ball valve. The ball valve places the t-connector in fluid communication with the chamber. A quick release coupling may be attached to the ball valve. A plurality of glad hand connectors are disposed at distal ends of the t-connector allowing the air dryer system to be easily assembled to a truck and truck trailer.