Portable cement mixer castable refractory mixer is one kind specially designed for mixing refractory materials, castable in steel plants. Different from the common concrete mixer, there is high wear-resistant steel liner in the mixer bottom and inner wall, five pieces different purpose mixing arm could make refractory materials mix evenly and void sticking. Usually, portable cement mixer castable refractory mixer is equipped with water pump, it is used for automatically adding water, and control the amount of water through the time relay.