Anti-collapse drainage device for hydraulic engineering construction

The utility model discloses an anti-collapse drainage device for hydraulic engineering construction, which comprises a folded telescopic inner pipe, a double-layer pipe joint and a steel wire rope, a folded telescopic outer pipe is arranged on the outer side of the folded telescopic inner pipe, and the two ends of the folded telescopic inner pipe and the two ends of the outer pipe are connected with a first double-layer pipe joint and a second double-layer pipe joint respectively. The other end of the first double-layer pipe connector is connected with a water inlet, the first double-layer pipe connector is sleeved with a first pipe sleeve, the other end of the second double-layer pipe connector is connected with a primer pump, the other end of the primer pump is connected with a water outlet, and the second double-layer pipe connector is sleeved with a second pipe sleeve. The first pipe sleeve and the second pipe sleeve are connected through a steel wire rope, a sleeve is arranged in the middle of the fixing