Multi-channel efficient dew-point instrument calibrating device

The invention relates to the field of dew-point instrument detection, and particularly discloses a multi-channel efficient dew-point instrument calibrating device which comprises a calibrating chamber, and a sampling mirror surface is fixedly connected to the bottom end of the interior of the calibrating chamber; a transverse plate is arranged in the verification chamber; a group of mounting holes are formed in the surface of the transverse plate; sliding holes are formed in the two sides of the mounting hole; t-shaped blocks are connected into the sliding holes in a sliding mode. Through holes are formed in the surfaces of the T-shaped blocks; dew point instruments are arranged in the mounting holes; the T-shaped blocks are in threaded connection with bolts through the through holes; the bottom end of the bolt is in threaded connection with a nut; a group of calibrators are mounted at the top end of the front side of the calibration chamber; the calibrator is electrically connected with the dew-point instrum