Forepoling-while-drilling device and method based on radar electromagnetic waves

The invention discloses a while-drilling forepoling device and method based on radar electromagnetic waves, and the device comprises a first processing module which is used for transmitting an opening instruction to a detector maneuvering execution mechanism when a preset triggering strategy is satisfied in a drilling process, and transmitting a detection instruction to a detector maneuvering execution mechanism when lithology and oil-gas-water-containing characteristic data of a to-be-drilled stratum are received; converting the feature data into feature codes and sending the feature codes to the second processing module through the communication module; the detector maneuvering execution mechanism is used for operating when receiving the opening instruction so as to drive the detector bracket to extend out of the short section shell; when the radar electromagnetic wave detector extends out of the short section shell, the lithology and oil-gas-water-containing characteristic data of a stratum to be drilled a