Spraying type waterproof and drainage structure for expressway tunnel

The utility model discloses an expressway tunnel spraying type waterproof and drainage structure which comprises a tunnel body, a supporting steel frame is arranged on the top of the tunnel body, a spraying paint layer is arranged at the bottom of the tunnel body, bases are installed on the two sides of the bottom of the tunnel body, and a waterproof layer is arranged on the base. The expressway tunnel waterproof and drainage device has the advantages that the spraying paint layers are arranged, waterproof materials are sprayed in a layered mode in the spraying process of the spraying paint layers, each waterproof material layer enhances spraying type waterproof and drainage of an expressway tunnel, meanwhile, the spraying paint layers are arranged, the spraying paint layers are sprayed in a layered mode, and meanwhile the spraying paint layers are not prone to falling off. By arranging the base and arranging the drainage funnel on the mounting hole of the base, when water seeps between the tunnel and the mou