The central dust collection system is also called the central dust collection system. It is composed of a vacuum cleaner host, a vacuum pipe, a vacuum socket, and a vacuum component. The vacuum host is placed outdoors or in the machine room, balcony, garage, and equipment room of the building. The main unit is connected to the vacuum socket of each room through the vacuum pipe embedded in the wall. When connected to the wall, only the vacuum socket of the size of an ordinary power socket is left, and a longer hose is used for cleaning. Insert the dust suction socket, dust, paper scraps, cigarette butts, debris and harmful gases will pass through the strictly sealed vacuum pipe to suck the dust into the garbage bag of the vacuum cleaner. Anyone can perform full or partial cleaning at any time. The operation is simple and convenient, avoiding secondary pollution and noise pollution caused by dust, and ensuring a clean indoor environment.