Fire alarm device for powdery material storage

The utility model relates to the technical field of fire alarm, and discloses a fire alarm device for powdery material storage, which comprises an alarm box, a smoke collecting pipe is fixedly inserted into the inner surface of the alarm box, a smoke alarm is fixedly mounted on the inner surface of the alarm box, an electric telescopic rod is fixedly mounted on the inner surface of the alarm box, and a power-driven telescopic rod is fixedly mounted on the inner surface of the alarm box. The inner surface of the electric telescopic rod is electrically connected with a wire, a trigger box is fixedly welded to the outer surface of the alarm box, a spring is fixedly connected to the inner surface of the trigger box, a partition plate is movably connected to the inner surface of the trigger box, and a sliding hole is formed in the inner surface of the partition plate. According to the fire alarm device for powdery material storage, smoke is collected through a smoke collecting pipe, when a certain amount of smoke