Multi-channel modularized portable gas detector

The utility model discloses a multi-channel modularized portable gas detector, and particularly relates to the technical field of gas detectors, the multi-channel modularized portable gas detector comprises a modularized gas detector body, a fixing ring is fixed on the outer wall of the modularized gas detector body and close to the top end of the modularized gas detector body, and a storage protection assembly is arranged below the fixing ring; the storage protection assembly comprises two magnets arranged below the fixing ring. According to the modularized gas detector, the modularized gas detector body can be vertically placed through the arrangement of the storage protection assembly, under the action of gravity, the modularized gas detector body drives the sliding block to move downwards in a guiding mode along the inner wall of the protection shell, and the magnet and the positioning groove can be magnetically attracted and fixed; the protective shell can protect the modularized gas detector body in all