Pile-anchor supporting device for deep foundation pit

The utility model discloses a deep foundation pit pile-anchor supporting device, and belongs to the technical field of foundation pit supporting devices, the deep foundation pit pile-anchor supporting device comprises a plurality of first row piles, a top beam is fixedly mounted at the upper ends of the first row piles, a plurality of second row piles are fixedly mounted at the bottom end of the top beam and located on the two sides of the first row piles, and a first anchor cable is arranged on one side of each second row pile; the ends, away from the second row of piles, of the first anchor cables are fixedly connected with fixed piles, connecting water pipes are arranged right in front of the second row of piles, second anchor cables are arranged on one sides, located below the second row of piles, of the second row of piles, and multiple sets of telescopic water pipes are fixedly installed at the tops of the connecting water pipes. The dewatering well is arranged on one side of the bottom of the first row