Novel airwave double-connection air tap, and assembly applying air tap

The invention provides a novel airwave double-connection air tap. The novel airwave double-connection air tap is characterized in that each air path channel of a first single-connection air tap is further provided with an air path shunting outlet, a connecting piece comprises second air path channels, an inlet of each second air path channel is in airtight connection with the corresponding air path shunting outlet of the first single-connection air tap, an outlet of each second air path channel is in airtight connection with a corresponding air path inlet of a second single-connection air tap,the number of the air path channels of the first single-connection air tap, the number of air path channels of the second single-connection air tap and the number of the second air path channels arekept consistent, and the number is at least two. The double-connection air tap can perfectly guarantee that the two single-connection air taps still keep corresponding air paths in order after the airpaths are shunted, the siz