Multifunctional filtering device for laboratory water quality detection

The utility model discloses a multifunctional filtering device for laboratory water quality detection, which comprises a multifunctional water sample filter, a safety bottle and a vacuum pump, the multifunctional water sample filter consists of a vacuum air chamber and a vacuum air chamber cover plate, and a plurality of filtering ports for sand core funnels are arranged on the same straight line in the middle of the vacuum air chamber cover plate. A plurality of filter head filter ports are formed in two parallel sides of the filter port for the sand core funnel, a filter sand core funnel is placed in the filter port for the sand core funnel, a filter head is placed in the filter head filter port, and an injector is arranged on the filter head; a test tube bracket is arranged in the vacuum chamber; a plurality of large test tubes and a plurality of small test tubes are arranged on the test tube bracket; an extraction opening is formed in one side of the vacuum chamber, and an emptying valve is arranged on a