The invention discloses a material piling and feeding conveying system, comprising an aboveground conveyor, a cylinder screen, an underground hydraulic delivery gate, an underground conveyor, a turnover conveyor, a lifting conveyor, a rotary conveyor, arc guide rails, an upright column and a center rotary control tower, wherein the underground hydraulic delivery gate is arranged on one side of a stocking yard, the upper surface of the underground hydraulic delivery gate is flushed with the ground surface and extends to a bank line from the utmost end of a first arc guide rail, and the underground conveyor is arranged below the underground hydraulic delivery gate; the turnover conveyor is connected with the underground conveyor, the tail end of the turnover conveyor extends to the outside of the stocking yard, at least one plow discharger is arranged on the middle section of the turnover conveyor, and the middle section and tail end of the turnover conveyor can be used for performing discharging; the turnover conveyor consists of a portal frame, a conveyor and a hoister, and can achieve up-down rotation in a certain range; and the left side and right side of the front end of the turnover conveyor are provided with a section of triangular auxiliary cantilever crane respectively, and the auxiliary cantilever cranes and a main cantilever crane form an integral structure and are hinged with a ground surface supporting seat.