Integrally detachable afterheat recycler

The utility model relates to an integrally detachable afterheat recycler. The integrally detachable afterheat recycler comprises a heat exchanging box body, a partition board, a fresh air tube and a waste gas exhaust device, wherein the heat exchanging box body is divided by the partition board into a heat absorbing region and a heat discharging region; and a waste gas filter screen and an oil removing and collecting device are arranged in the heat exchanging box body; the integrally detachable afterheat recycler is characterized in that a waste gas inlet is formed at the bottom of the heat absorbing region; the fresh air tube is mounted at the top of the heat discharging region; the waste gas exhaust device is mounted at the top of the heat absorbing region; a hot air supplementing opening is formed at the bottom of the heat discharging region; a heat transfer tube is also arranged in the box body; the heat transfer tube obliquely penetrates through the partition board and is mounted within the heat exchangi