High-temperature waste gas waste heat recovery device

The utility model discloses a high-temperature waste gas waste heat recovery device, which belongs to the technical field of energy conservation and emission reduction and comprises an exhaust pipe, a gas guide pipe is communicated with the left side of the exhaust pipe, a gas outlet pipe is communicated with the right side of the exhaust pipe, and a heat exchanger is arranged in an inner cavity of the exhaust pipe. Meanwhile, the inner diameter of the exhaust pipe is larger than that of the gas guide pipe, so that the flowing speed of waste gas in the gas guide pipe is conveniently reduced after the waste gas passes through the exhaust pipe, the waste gas stays in an inner cavity of the exhaust pipe for more time, heat exchange of a heat exchanger is facilitated, the heat recovery efficiency is improved, and heat is prevented from being rapidly exhausted into air through the exhaust pipe along with the waste gas; and the medium eduction pipe penetrates through the inner ring of the coil pipe, so that when th