Waste heat reutilization device based on gas heater

The utility model discloses the problem of solving is: the utility model provides a waste heat reutilization device based on gas heater includes gas heater and establishes the main part outside gas heater, be equipped with into mouth and exhaust port in the main part, the inside cavity of main part, inside a plurality of intake pipe and the blast pipe of being equipped with of main part, the intake pipe with advance the mouth and be connected, the blast pipe is connected with the exhaust port, the main part top is equipped with the upper cover, it is equipped with the shim to be close to the intake pipe of upper cover position and the juncture between the blast pipe, the main part both sides are equipped with the delivery port of water inlet respectively. Beneficial effect lies in: 1. Through twice recovery in the tail gas to containing the waste heat, the utilization efficiency of the energy has been improved, 2. Install the storage water tank additional outside the main part, as far as possible the unnecessary heat of save how.