Sampling probe for stationary pollution source online monitoring system

The invention discloses a sampling probe for a stationary pollution source online monitoring system, and relates to the technical field of air pollution monitoring, the sampling probe comprises a probe body and an external pipe head, the external pipe head is connected with an external pipe body, one end of the external pipe body is connected with a spherical shell, and a spherical particle filter is arranged in the spherical shell; the outer side of the external pipe head is connected with a back flushing assembly, and the back flushing assembly is located at the bottom of the spherical particle filter; the exterior of the spherical shell communicates with an air inlet pipe and an exhaust pipe, the air inlet pipe is located above the exhaust pipe, and the air inlet pipe and the exhaust pipe are connected with a row dividing assembly; a heating piece is arranged on the inner side of the external pipe body, a shifting piece is arranged on the outer side of the external pipe body, and the sampling probe, the ga