Soil remediation system and soil construction system

The invention provides a soil remediation system and a soil construction system. The soil remediation system comprises a steam generation device, a storage device used for storing an oxidizing agent, and an integrated injection well comprising a preheating chamber, a mixing chamber and an injection well pipe which are sequentially in butt joint from top to bottom. A first path of steam from the steam generation device exchanges heat with an oxidizing agent from the storage device in the preheating chamber, and the preheated oxidizing agent is mixed with a second path of steam in the mixing chamber and then enters soil through the injection well pipe; the extraction well is arranged in a construction area; the injection pump is provided with a pollutant suction inlet communicated with the extraction well, and the third path of steam enters the injection pump and serves as a power medium of the injection pump; the post-processing device is used for processing the discharge of the jet pump. According to the soil