Hopper for cast-in-place concrete skeleton slope protection

The hopper comprises a concrete stock bin, a material conveying pipe is arranged at the bottom of the concrete stock bin, the material conveying pipe and the concrete stock bin are obliquely arranged, a material conveying opening is formed in the end, away from the concrete stock bin, of the material conveying pipe, and a gate valve baffle is arranged in the end, away from the concrete stock bin, of the material conveying pipe; a gate plate opening is formed in the portion, on one side of the gate valve baffle, of the material conveying pipe, the gate valve baffle is arranged in the gate plate opening, a rotating mechanism is arranged on the material conveying pipe and connected with the gate valve baffle, and a hanging ring is arranged at the top of the concrete stock bin. A series of structures are arranged, the inclination angle between the conveying pipe and the concrete bin is 30 degrees, the concrete impact force of a conveying opening of the conveying pipe can be relieved, meanwhile, the gate type valv