Your comments are a bit confusing.
At the beginning you ask about:
I gave you a link on how people get DHT22 working with ESP8266. I also gave you a link to another step-by-step tutorial about standalone ESP8266+Blynk
Then you say:
What actually you need? Read sensor data or switch GPIOs ON/OFF ?
Next, have you successfully compiled Blynk on your ESP8266 ever?
If you need switching GPIOs - then no code is needed. Just connect an LED to the GPIO, Open app, select this GPIO in PIN field. Press PLAY - it should work.
If you need getting DHT22 data - follow @Bobbo_SA comments. You can also check another tutorial on Virtual Pins: http://www.instructables.com/id/How-to-use-Virtual-Pins-in-Blynk/