Step one:
First draw a thick cross.
Step 2:
Draw a long shape on the top, bottom, left and right.
The third step:
Then draw a semicircle on top, and draw a small square on top and left and right.
Step 4:
Draw two vertical lines downward, and then draw a long bar.
Step 5:
Then draw a circle in the middle and add a pentagon in the middle.
Step 6:
Add arcs on both sides of the ring, and draw arc decoration on the bottom.
Step 7:
Finally, apply a nice color and the fire hydrant is ready.