Bend connection pipe

The utility model relates to a bend connection pipe which comprises a straight pipe body (5) and is characterized in that a first flange (1) is arranged at one end of the straight pipe body (5), a circular-arc-shaped sealing end (22) is arranged at the other end of the straight pipe body (5), a bend pipe body (3) is arranged on the pipe wall of the middle of the straight pipe body (5), the bend pipe body (3) and the straight pipe body are perpendicularly arranged, and the bend pipe body (3) is communicated with the straight pipe body (5). A second flange (4) is arranged on the end portion of the bend pipe body (3), and a rubber connection pipe body (5) is connected with the position of the second flange (4) at the end portion of the bend pipe body (3). The bend connection pipe has the advantages that the diameter of the straight pipe body is larger than the diameter of the flange of the straight pipe body so as to slow down the water slurry material flow speed, the top of a buffer pipe body is of a circular a