Below is the sample script for that.

$StorageAccountName = "storageaccountname"

$StorageAccountKey = "storageaccountkey"

$ctx = New-AzureStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $StorageAccountKey # get the context

$ContainerName = "yourcontainer"

New-AzureStorageContainer -Name $ContainerName -Context $ctx -Permission Blob

$localFileDirectory = "C:\work\UploadFilestoBlob\FileDrop\"

$BlobName1 = "yourblob.txt"

$localFile1 = $localFileDirectory + $BlobName1

Set-AzureStorageBlobContent -File $localFile1 -Container $ContainerName1 -Blob $BlobName1 -Context $ctx -Force

Regards,

Chaitanya