Top air inlet valve device of gyrator

The utility model discloses a top air inlet valve device of a gyrator, and belongs to the technical field of air inlet valves. A top air inlet valve device of a gyrator comprises an air inlet main valve pipe fixedly communicated with the top of the gyrator, the top of the air inlet main valve pipe is communicated with an air collecting box, the top of the air collecting box is communicated with two symmetrical air inlet branch valve pipes, the front faces of the two air inlet branch valve pipes are provided with switches, the tops of the two air inlet branch valve pipes are communicated with strip-shaped boxes, and the strip-shaped boxes are communicated with the top of the gyrator. An adjusting mechanism is arranged in the strip-shaped box, a gas filtering mechanism is fixedly installed on the adjusting mechanism, the side, close to the center of the gas collecting box, of the top of the strip-shaped box communicates with a gas inlet cover, and the upper end and the lower end of the outer surface of a gas in