Detection optimization type permeability coefficient tester

The utility model relates to a detection optimization type permeability coefficient tester. The utility model relates to the technical field of cement concrete water permeability detection. The problem that test water in an overflow water tank and an overflow pipe forms a water seal effect is solved; the flowability of water in the water storage barrel is influenced; the test structure is influenced. Overflow water tank, a partition plate is movably arranged in the overflow water tank; the inner space of the overflow water tank is divided into an upper water tank and a lower water tank througha partition plate, a water passing hole is formed in the center of the partition plate, a water storage barrel is arranged in the center of the partition plate, a water inlet pipe and an overflow pipe are fixedly connected to the peripheral sides of the overflow water tank and the water storage barrel respectively, and the overflow pipe is located at the end, close to the lower water tank, of theoverflow water tank. Acco