Connection between two pre-amplifier stages
The 47k component appears to be a potentiometer, using a somewhat nonstandard symbol. The center/side connection going to the capacitor is the wiper.

The capacitors are being used as DC blocking capacitors, preventing any DC link between the stages of the amplifier and decoupling the microphone's bias voltage from the signal. As @BrianDrummond and @analogsystemsrf point out, the 2.2 μF capacitor is connected the wrong way around.