Fire-fighting pipeline valve

The utility model relates to the field of valve mechanisms, in particular to a firefighting pipeline valve which comprises a smoke exhaust pipeline and a baffle rotationally connected to the interior of the smoke exhaust pipeline, the baffle is parallel to the length direction of the smoke exhaust pipeline, one side of the baffle is connected with a weight, and the weight is located at the position, away from the rotating axis of the baffle, of the baffle. The baffle can keep the tendency of rotating in the vertical state under the action of the gravity of the heavy block, and a limiting mechanism is arranged outside the smoke exhaust pipeline and used for limiting rotation of the baffle before the temperature of the smoke exhaust pipeline reaches the specified temperature. The fire-fighting pipeline valve has the effect of improving the fire resistance of the fire-fighting pipeline valve. 本申请涉及阀门机构领域，尤其涉及一种消防管道阀门，其包括排烟管道以及转动连接在排烟管道内部的挡板，所述挡板平行于排烟管道的长度方向设置，所述挡板一侧连接有重块，所述重块位于挡板上远离挡板转动轴线的位置，在所述重块的重力的作用下所述挡板能够保持