Urea tank and gas-driven urea injection system provided with same

The utility model relates to a urea tank and a gas-driven urea injection system provided with the same, the urea tank comprises a tank body provided with a containing cavity, and the tank wall of the tank body is provided with an inner layer forming the containing cavity and a reinforcing layer wrapping the inner layer; wherein the reinforcing layer comprises reinforcing fibers, the reinforcing fibers are wound on the outer side of the inner layer, and the reinforcing layer is coated with the protective layer. According to the urea tank, the tank wall of the tank body is of the multi-layer structure, and the tank body has the light weight and the high structural strength while the sealing performance and the corrosion resistance are met by arranging the hierarchical structures with different properties. Moreover, the reinforcing fibers are wound outside the inner layer to form the reinforcing layer, so that the purpose of improving the structural strength is achieved, and the tank body is ensured to have good