Counter flow type flue gas condenser

The utility model relates to a counter flow type flue gas condenser comprising a barrel body, wherein the upper end of the barrel body is provided with an upper pipe plate, and the lower end thereof is provided with a lower pipe plate; the upper pipe plate and the lower pipe plate are provided with a plurality of pipe plate holes with same quantity and diameter; the barrel body is internally provided with a plurality of concave flue gas pipe which are vertically arranged side by side and parallel to the barrel body; two ends of the concave flue gas pipe are welded with flue gas pipe end heads; the upper end and the lower end of the concave flue gas pipe are connected with the pipe plate holes of the upper pipe plate and the lower pipe plate by the flue gas pipe end heads; and one side of the upper end of the barrel body is provided with a water outlet short pipe and one side of the lower end thereof is provided with a water inlet short pipe. The counter flow type flue gas condenser leads the flue gas to enter