Lithium hexafluorophosphate dredging device

The utility model discloses a lithium hexafluorophosphate dredging device which comprises a stirring shaft, the stirring shaft is formed by combining a first shaft body and at least one second shaft body, and a top contact mechanism is arranged at the lower end of the stirring shaft; the top contact mechanism comprises a seat body which is arranged at the lowermost end of the stirring shaft, four groups of connecting seats are fixedly mounted on the periphery of the outer part of the seat body, and bent claws are arranged on the four groups of connecting seats. The stirring shaft is formed by combining the first shaft body and the second shaft body, so that the length of the stirring shaft can be adjusted according to the length of a blocked pipeline, crystals attached to the inner walls of the pipelines with different depths can be cleaned, and the top contact mechanism mounted at the lowest part of the stirring shaft can be used for cleaning crystals attached to the inner walls of the pipelines with differe