Tinplate can leakproofness detection device

The utility model belongs to the field of tin can processing, and particularly relates to a tin can leakproofness detection device, which comprises a main body assembly, a rotating assembly is arranged in the main body assembly, a limiting assembly is arranged above the rotating assembly, the main body assembly comprises a detection box, a heater is fixedly arranged in the detection box, and the heater is connected with the main body assembly. The heater is arranged to be in an arc shape, a nitrogen measuring instrument is fixedly installed on the upper surface of the interior of the detection box, a measuring probe is fixedly installed at the bottom of the nitrogen measuring instrument, the rotating assembly, the limiting assembly and the heater are used in cooperation, the iron can is driven to rotate at the constant speed, and the heater evenly heats the iron can; nitrogen in the iron can is heated to expand and overflow, the measuring probe is located over the iron can, the nitrogen measuring instrument a