Admixture adding device for dam concrete production and processing

The admixture adding device for dam concrete production and processing comprises a lifting cylinder, a discharging port is formed in one end of the lifting cylinder, a hoop is arranged on the surface of the discharging port in a sleeving mode, a corrugated pipe is fixed to the bottom end of the hoop, two first limiting grooves are symmetrically formed in the two ends of the hoop in a penetrating mode, and the first limiting grooves are communicated with the corrugated pipe. Clamping grooves corresponding to the bottoms of the first limiting grooves are formed in the two ends of the shroud ring, and two limiting blocks are symmetrically fixed to the two ends of the discharging opening. Through the design of a hoop ring, a corrugated pipe, a limiting block, a first limiting groove, a pulling plate, a clamping block, a clamping groove, a first sliding groove, a second sliding groove and a spring, the discharging direction of a discharging port can be changed according to needs, the use requirements of people are