Printing ink production waste gas purifier

The utility model discloses a printing ink production waste gas purifier which comprises a purifier body, a connecting port and a connecting pipe, the connecting port is fixedly connected to the front side of the purifier body, the connecting pipe is movably communicated with the interior of the connecting port, clamping blocks are fixedly connected to the top and the bottom of the connecting port, and placing cavities are formed in the clamping blocks; and a clamping mechanism is arranged in the placing cavity. The purifier, the connecting port, the connecting pipe, the clamping block, the placing cavity, the clamping mechanism, the pressing block and the adjusting mechanism are matched for use, and the pressing mechanism and the pressing block can be driven to move by pulling the adjusting mechanism, so that the connecting pipe is fixed through the pressing block; the problems that when a purifier is connected with printing ink production equipment, if leakage occurs at the connecting position, waste gas in