Particle filter used for exhaust gas analyzing device of diesel vehicle

The invention relates to an exhaust gas analyzing device for a diesel vehicle, in particular to a particle filter used for an exhaust analyzing device of a diesel vehicle. The filter comprises a housing, a connecting cover, a locking cover, a handle and a filter element body; the filter element body comprises an internal element, a connecting shaft, a primary filter element and a precise filter element; the internal element is fixedly arranged in an element body mounting room; the connecting shaft is connected with the internal element and is arranged towards a gas chamber; the middle part of the internal element is radially provided with a radial airway; a first axial airway is arranged at the right side of the radial airway; the connecting shaft is fixedly connected with the internal element through a shaft rod; a mounting opening is formed between the internal element and an end head; the primary filter element is arranged outside the mounting opening; and the precise filter element is arranged in the inte