Energy-saving needle coke rotary kiln hot air duct

The utility model discloses an energy-saving needle coke rotary kiln hot air duct which comprises a rotary kiln body, the outer wall of the rotary kiln body is sleeved with a heat preservation cover, the other end of an air guide pipe is communicated with an air outlet, a leakage hole is formed in the other end of the air outlet, and the other end of the leakage hole is communicated with an air guide disc. The air guide discs and the air outlets are distributed on the air guide pipes at equal intervals in parallel, and the air guide pipes are symmetrically installed on the inner wall of the rotary kiln body in an embedded mode. According to the energy-saving needle coke rotary kiln hot air duct, the rotary kiln body communicates with the air guide pipe through the air inlet, the air guide pipe is of an arc-shaped net-shaped copper pipe structure, and the air guide pipe and the inner wall of the rotary kiln body are distributed in a wrapping mode, so that heat of the rotary kiln body can be stably guided into