Decomposition furnace gooseneck capable of effectively reducing resistance

The invention belongs to the technical field of decomposing furnace gooseneck pipes, and particularly relates to a decomposing furnace gooseneck pipe capable of effectively reducing resistance, which comprises a three-way pipe fixed on one side of an inner cavity of a decomposing furnace and a gooseneck pipe main body fixed in the middle of the inner cavity of the decomposing furnace, the right end of the three-way pipe fixedly communicates with the head end of the gooseneck pipe body, the tail end of the gooseneck pipe body fixedly communicates with a discharging pipe, one end of the discharging pipe is located in an inner cavity of the decomposing furnace, the other end of the discharging pipe penetrates out of the inner cavity of the decomposing furnace, and a flexible transmission shaft is arranged on the center line of an inner pipe of the gooseneck pipe body. The spoke support wheel and the spoke transmission wheel are provided with through holes, and the supporting plate and the scraping plate occupy a