Soil steam sterilizer tail end enhanced heat transfer device

The invention discloses a soil steam sterilizer tail end enhanced heat transfer device which comprises a steam pipeline, a steam disc, injectors and novel sine-cosine function fins, the steam pipeline is arranged in the center of the top end of the steam disc, and the novel sine-cosine function fins are arranged at the bottom of the steam disc; and the injectors are uniformly arranged in the novel sine-cosine function fins. The device is used for overcoming continuous cropping obstacles of panax notoginseng and other traditional Chinese medicinal materials; the novel sine-cosine function fins are adopted for hole digging design, direct heat conduction and heat exchange between the tail end and soil are enhanced, and the heat exchange efficiency is improved; and due to the fact that the soil belongs to a porous medium, heat exchange dead zones are reduced, and the heat exchange efficiency is greatly improved; and meanwhile, water in the soil can flow back, residual water in the soil is utilized, and the better