Portable bacteria detector

The utility model relates to the technical field of bacterium detection, in particular to a portable bacterium detector which comprises a detector shell and a fixing frame positioned in the detector shell, a fixing frame is arranged in the detector shell, a built-in pipe is arranged in the fixing frame, a rotating mechanism and an extruding mechanism are arranged on the built-in pipe, a detection pipe is mounted in the middle of the fixing frame, a light shielding plate is arranged on the surface of the fixing frame, and a mounting opening is hinged to the top of the detector shell. The rotating mechanism and the extruding mechanism are additionally arranged at the original test tube insertion position in the detector shell, and the rotating mechanism can drive the whole built-in tube to rotate through the micro motor, so that the test tube inserted into the built-in tube is rotated, a solution in the test tube and a sample are fully fused, the test tube does not need to be manually oscillated, and the operat