The invention provides a primary wind speed leveling and automatic measuring device. The device comprises a flue, a pitot tube, a tubular linear motor, an automatic controller and a differential pressure transmitter. According to the primary wind speed leveling and automatic measuring device, the primary wind speed can be automatically and accurately measured, and the workload is greatly reduced.The human error is reduced and the test work can be completed by one person. The work intensity of the test personnel is greatly reduced. An additional positioning ruler is not needed, and the automatic positioning of the pitot tube is achieved through a built-in positioning device of the tubular linear motor. The positioning precision is high, and the human error caused during the measurement ofa handheld ruler is avoided. The measurement accuracy is improved. The wind speed of each primary wind pipe of the same-layer combustor can be measured at the same time, and the measurement time is greatly shortened. The automatic data recording, the wireless data transmission and the control of the primary wind speed leveling test can be realized. The real-time adjustment of the test working condition can be realized.