Fluoride sampling device applied to dust falling rod

The utility model discloses a fluoride sampling device applied to a dust fall rod, a pulley is arranged on the dust fall rod, the fluoride sampling device comprises a sampling device main body which is arranged on the dust fall rod below the pulley in a sliding manner and is used for collecting solid fluoride, and a steel wire rope storage device is fixedly arranged on the pulley through a mounting plate; a lifting ring is arranged on the sampling device main body; one end of the steel wire rope extending out of the steel wire rope container is fixedly connected to the lifting ring. The steel wire rope storage device is arranged on the pulley, the sampling device body is in sliding fit with the dust falling rod, automatic lifting of the sampling device body can be achieved under the action of the pulley, and it can be guaranteed that the position of the sampling device body does not change any more after the sampling device body ascends to the set height by setting the length of the steel wire rope; the colle