Multidirectional three-dimensional circulation in-situ remediation system

The invention discloses a multidirectional three-dimensional circulation in-situ remediation system which comprises a remediation well and a monitoring well, and the remediation well and the monitoring well are vertically installed on a to-be-remediated site at intervals, the monitoring well monitors soil characteristics, an underground water flow field and pollution plume change data informationof a to-be-remediated site. A control part adjusts underground water extraction and/or remediation agent injection of the remediation well to be conducted between different wells and on different wellscreen sections of all the wells according to the obtained data information so as to promote multi-direction three-dimensional circulation of underground water and agents, and efficient removal of pollution along with water flow or full contact reaction between the agents and the pollutants can be achieved. The multidirectional three-dimensional circulation in-situ remediation system is reasonable in structure, intelligen