The invention relates to a pneumatic pipeline transmission method of a business hall and a device, belonging to the field of a pneumatic pipeline transmission system which is a modern fast logistics transmission tool. An article is arranged into a transmission carrier when in transmission, such as a special transmission barrel which guarantees that the article is not damaged in the transmission process. The pneumatic pipeline system transmits the article from one working station to another working station in the pipeline, thus not only being capable of effectively guaranteeing the safety of the articles, but also saving the time and improving the working efficiency. But when a transaction with a client is met in an open area, due to the existing inconvenience, the use is influenced, and the reason is that more operation of the client is needed. The content of the invention is as follows: a client-end transmission pipeline of the transmission system is set as an opened port; when the client sends, a transmitter is placed into a client port, a starting switch is triggered, a negative pressure fan arranged on a service-end vertical pipeline is started, the transmitter without changing the before and after placement direction is absorbed to a service working end and falls to a working port with well-placed transmission, the service end takes out the transmitter; when the service end transmits back, the transmitter is placed into a sending port, the starting switch is triggered, and a positive pressure fan arranged at a service-end pipeline port is started; the transmitter is blown to the client port; and a service port is provided with a door which is in closed state all the time when in sending and receiving.