Air mixing and cooling valve of high-temperature exhaust pipe

The utility model discloses an air mixing cooling valve of a high-temperature exhaust pipe, and particularly relates to the technical field of high-temperature exhaust pipes, which comprises a sealing pipe, one side of the upper surface of the sealing pipe is fixedly connected with a water outlet pipe, and the other side of the lower surface of the sealing pipe is fixedly connected with a water inlet pipe. The end, close to the water outlet pipe, of the sealing pipe is fixedly connected with a first sealing plate, the end, close to the water inlet pipe, of the sealing pipe is fixedly connected with a second sealing plate, and a metal conduction cylinder is arranged in the sealing pipe. A metal conduction cylinder, a spiral copper pipe and a connecting cold air pipe are arranged in a sealing pipe, the two ends of the metal conduction cylinder are fixedly connected with a first sealing plate and a second sealing plate on the two sides of the sealing pipe, a sealing cavity is formed by the inner wall of the seal