Mixer for manufacturing concrete composite admixture

The utility model discloses a blender for manufacturing concrete composite admixture, which comprises a machine body, sliding rails are fixedly connected to the opposite inner walls of the top in the machine body, two crushing rollers are arranged between the two sliding rails, the two ends of the two crushing rollers are rotatably sleeved with connecting blocks, and the connecting blocks are connected with the machine body. The two connecting blocks located on the left side are slidably connected into the two sliding rails in a sleeved mode correspondingly, the two connecting blocks located on the right side are fixedly connected into the two sliding rails in a sleeved mode correspondingly, one sides of the two connecting blocks located on the left side are fixedly connected with buffering mechanisms correspondingly, and one ends of the two crushing rollers are jointly and fixedly connected with a rotating mechanism in a sleeved mode. And a filter plate is arranged below the two crushing rollers. According t