Grinding machine connector capable of avoiding material blockage

The utility model relates to the technical field of grinding machine auxiliary equipment, and discloses a grinding machine connecting port capable of avoiding material blockage, which comprises a fan outlet, a buffer pipe is inserted below the fan outlet, an ejection pipe is inserted below the buffer pipe, an upper fixed clamping seat and a lower fixed clamping seat are arranged on the outer side of the buffer pipe, and the upper fixed clamping seat and the lower fixed clamping seat are arranged on the outer side of the ejection pipe. The upper fixing clamping seat and the lower fixing clamping seat are used for fixing the fan outlet and the spraying pipe respectively, the sealing assemblies and the fixing assemblies are arranged in the upper fixing clamping seat and the lower fixing clamping seat, after the conical buffer pipe is additionally arranged, sodium bicarbonate can enter the spraying pipe gently, the phenomenon that the fan outlet is blocked is eliminated, and the service life of the fan is prolong