Powder adding device for concrete mixing equipment and concrete mixing equipment

The utility model provides a powder adding device for concrete mixing equipment and the concrete mixing equipment, which relate to the technical field of concrete equipment and comprise a stock bin, a blanking mechanism and a valve. A long-strip-shaped blanking opening is formed in the bottom of the stock bin. The discharging mechanism comprises a long-barrel-shaped shell, a rotating shaft arranged in the shell, a spiral blade arranged on the periphery of the rotating shaft and a power source used for driving the spiral blade to rotate. The shell is located at the bottom of the stock bin and fixed to a discharging opening of the stock bin. A discharging channel is further arranged at the bottom of the shell. And the valve is arranged on the discharging channel. The technical scheme has the following technical effects that firstly, under stirring of the spiral blade, materials at the bottom of the stock bin can be smoothly discharged from the discharging opening, and therefore the situation of material blockin