Environment-friendly sand blasting and dust falling device

A sand blasting and dust falling environment-friendly device comprises a horizontally-arranged connecting pipe, one end of the connecting pipe is detachably and fixedly connected with a sand blasting gun head, a fixing base is arranged on the portion, close to a water spraying head, of the connecting pipe, a threaded through hole is formed in the fixing base and extends into the connecting pipe, and an adjusting bolt is in threaded connection with the interior of the threaded through hole. The other end of the connecting pipe is connected with a water spraying head, a sand blasting hole communicated with the connecting pipe is formed in the middle of the water spraying head, a water storage cavity is formed in the water spraying head, the water storage cavity is annular and surrounds the sand blasting hole, an L-shaped water inlet pipe is arranged on one side of the water spraying head, and one end of the water inlet pipe is fixed to the water spraying head and communicated with the water storage cavity in th