Smart city drainage system

The invention relates to a smart city system, in particular to a smart city drainage system, which comprises a water level monitoring module, an alarm module, a central control center and an intelligent drainage module, and is characterized in that the intelligent drainage module is arranged in an inspection well of an underground drainage pipe network provided with the water level monitoring module in advance; the system can effectively drain flood when rainstorm comes; the intelligent flood drainage modules are flexibly distributed and can be flexibly arranged in advance according to an area covered by rainstorm; and compared with the arrangement at each low-lying position of the city, the flexibility is higher, and the cost is saved. According to the intelligent flood drainage module, the flood drainage power can be automatically adjusted according to the change of the water level height, the height of the intelligent flood drainage module can be correspondingly adjusted, and technical submergence is avoided; and when the height is adjusted, the connecting strength of the device and the inspection well is adaptively adjusted, and collapse is effectively prevented.