The invention discloses a powdery material homogenizing steel plate silo which comprises a silo body and a silo top. A pressure relief cone is arranged in the center of the bottom of the silo body, an annular pressure relief cone fluidization bar is arranged in a cylindrical straight section of the pressure relief cone, fluidization bars are arranged at the bottom of the pressure relief cone, annular middle-region fluidization bars and annular edge-region fluidization bars are sequentially arranged on the periphery of the annular pressure relief cone fluidization bar, vertical fluidization bars are vertically arranged at the lower portion of the silo body along the silo body, multiple guide cones are arranged at the bottom of the silo body, the cross section of each guide cone is an isosceles triangle, one end of each guide cone is connected with the silo wall, the angle between one end of each guide cone and a horizontal bottom board is not smaller than 20 degrees, middle-region discharging pipes are arranged between the guide cones and the pressure relief cone, a V-shaped guide groove is formed between every two adjacent guide cones, edge-region discharging pipes are arranged in the guide grooves, and arch break fluidization bars are arranged at the tops of the guide cones. The powdery material homogenizing steel plate silo has the advantages of being simple in structure, convenient to use, diversified in structure and performance for a raw material homogenizing silo, good in homogenizing effect, small in gas consumption, high in delivery rate and smooth in discharging operation.