Energy-saving compact double-stage de-airing extruder is a unique product, which is designed and manufactured on the basis of digesting and absorbing the advantage of all kinds of similar products at home and abroad. It can be used in producing ceramic paver and split brick as well as hollow brick. It has won praise from the costumers for its compact structure, high yield and lowpower consumption, etc. The fourth generation of it, which was improved after being used by hundreds of costumers, not only gives full play to its original advantage, but also shows its unique characterisitcs in safety, reliability, wide applicability of the raw materials and easy maintenance.