Environment -friendly air preheater's waste heat recovery device

The utility model discloses an environment -friendly air preheater's waste heat recovery device, including the device main part, heating device is all installed at the inner chamber both ends of device main part, the recovery pipe box is installed through the connecting pipe to heating device's one end, the inner chamber of retrieving the pipe box is equipped with the piece with thermal pad, it isconnected with the connecting pipe to pass through the connecting piece with the both ends of thermal pad piece, the protective sheath is all installed at the both ends of device main part, the one end of retrieving the pipe box is equipped with the extension, and the one end of extension extends to the outside of device main part, the inner chamber of extension is equipped with retrieves the stick, and the one end of recovery stick is equipped with protection device. The utility model discloses simple to use, it is convenient to install, and the person of facilitating the use uses for the user has a fine convenience