The invention discloses a hollow fibrous membrane module, the two ends of which can have water flowing out for immersing, and aims to provide a membrane module, of which the support tube not only has support function, but also serves as a water channel with the two ends having water flowing out, the structure is simple and the aeration is even. An aeration inlet column is arranged at an air inlet, one end of the aeration inlet column communicates with an aeration device, and the other end is spliced with an inlet pipe. The aeration device comprises an aeration body, in which an air collecting chamber and a water collecting chamber are arranged, the outer side of the aeration body is connected with a plurality of sealed air chambers, and a plurality of aeration holes are arranged on each sealed air chamber. The water collecting chamber is internally provided with a plurality of water outlets, the lower end of the aeration body is provided with a plurality of water inlets, and water passages communicating the water inlets with the water outlets are arranged on the aeration body. One end of the support tube is opened on the end surface of the sealing layer of the water outlet end, and the other end communicates with the water collecting chamber of the aeration device. The support tube has the support function and serves as the water channel with the two ends having water flowing out, thereby simplifying the structure of the membrane module, reducing the volume of the membrane core, reducing the construction cost, and improving the utilization ratio and the water yield of membrane threads.