Non-contact drill stem desilter

The utility model discloses a non-contact drill stem desilter. The desilter is provided with an air injection system. The air injection system is a spray pipe component consisting of an air pipe and nozzles communicated with the air pipe. The number of the nozzles is at least two; and a space allowing a drill stem to pass through is formed on the central part of the air injection system. The two nozzles are uniformly distributed at the same horizontal position around the space. The air flow direction of the two nozzles is downward. The non-contact drill stem desilter is mainly used for desilting the drill stem, so that the problem of high labour intensity or poor reliability of the traditional drill stem desilting method is solved. The non-contact drill stem desilter can also be applied to other similar fields and has the advantages of high reliability and good desilting effect.