Papermaking white mud light shale brick and producing method thereof

Provided are a papermaking white mud light shale brick and a producing method thereof. The brick comprises, by weight, the raw materials of 60% of shale, 20%-35% of papermaking white mud, 2%-15% of flyash and 3%-15% of assistant agents. The shale, the papermaking white mud and the flyash are crushed and mixed with auxiliary materials, then by the weight ratio of the mixture, 50%-65% of water with the temperature of 40-45 DEG C is added for mixing, stirring is even, homogenizing treatment is carried out, a vacuum mud squeezing machine is used for blank making and drying, a blank is placed under the condition of 950-1150 DEG C for roasting and is kept for 8-12 hours, cooling and drawing are carried out, and the brick is obtained. The brick has the advantages that the papermaking white mud is used, high-temperature roasting is carried out on plant fibers in the white mud, tiny air hole channels are formed in the brick body, brick body weight is lowered, heat preservation performance and sound insulation effect are improved, the brick is very suitable for being used in a non-bearing wall of a building, and secondary pollution is avoided. In summary, energy is saved, environment is protected, and waste is reused.