Sludge drying treatment system for water conservancy and hydropower engineering and operation method thereof

Provided are a sludge drying treatment system for water conservancy and hydropower engineering and an operation method thereof. Non-dewatered sludge is separated into liquid-phase sewage and dewateredsludge through a centrifugal machine, the liquid-phase sewage is discharged into a sewage treatment plant to be treated, the dewatered sludge is conveyed to a wet sludge bin, waste gas is conveyed into a waste gas spraying tower through a discharging pipeline to be treated, and the waste gas treated by the spraying tower is conveyed into a factory deodorization system through a waste gas air blower; the wet sludge material is conveyed to a sludge distributor through a double-shaft screw conveyor, the uniformly distributed and spread sludge is cut into noodle shapes by a sludge noodle shape forming machine, and the noodle-shaped dried sludge is scraped by a sludge scraper; a cooling screw conveyor cools the noodle-shaped sludge with waste heat, and the completely cooled noodle-shaped sludge is fed into a dry sludg