Dustproof mechanism and recycled pervious concrete porosity tester

The utility model relates to the technical field of porosity testers required for detecting regenerated pervious concrete, in particular to a dustproof mechanism and a regenerated pervious concrete porosity tester, which comprises a protection component, a dustproof component and a control component, comprising a shell, a water tank arranged on the end face of the shell, a dust cover arranged outside the water tank, an objective table arranged on the end face of the water tank and a protection assembly arranged on the outer wall of the shell, a display screen and a plurality of operational keys are arranged on the end face of the shell, and a power socket is arranged on the outer wall of the shell. The power socket is protected and prevented from being affected by dust and damp, follow-up use is not affected, moreover, the shell and the cover are arranged outside the display screen, when the display screen is not used, dust prevention protection is conducted on the display screen, follow-up observation and us